[Thinkit]Adding basic_switch.h to lib.

[bibhuprasad-hcl]

PR Description:
Adding basic_switch.h to lib

Keyword Check:
bibhuprasad@eonms7vm1:~/Sonic_06_06_2024/sonic-buildimage/src/sonic-p4rt/sonic-pins$ ~/keyword_checks.sh .
Keyword check Passed.

Build Results:
bibhuprasad@bb37b62b1ae4:/sonic/src/sonic-p4rt/sonic-pins$ bazel build $BAZEL_BUILD_OPTS ...
INFO: Analyzed 323 targets (26 packages loaded, 415 targets configured).
INFO: Found 323 targets...
INFO: Elapsed time: 5.176s, Critical Path: 0.02s
INFO: 1 process: 1 internal.
INFO: Build completed successfully, 1 total action
bibhuprasad@bb37b62b1ae4:/sonic/src/sonic-p4rt/sonic-pins$

UT Results:
bibhuprasad@bb37b62b1ae4:/sonic/src/sonic-p4rt/sonic-pins$ bazel test $BAZEL_BUILD_OPTS --cache_test_results=no ...
INFO: Analyzed 323 targets (0 packages loaded, 271 targets configured).
INFO: Found 206 targets and 117 test targets...
INFO: Elapsed time: 115.182s, Critical Path: 16.71s
INFO: 122 processes: 129 linux-sandbox, 17 local.
INFO: Build completed successfully, 122 total actions
//gutil:collections_test PASSED in 0.5s
//gutil:io_test PASSED in 0.6s
//gutil:proto_matchers_test PASSED in 0.6s
//gutil:proto_test PASSED in 0.5s
//gutil:status_matchers_test PASSED in 0.5s
//gutil:test_artifact_writer_test PASSED in 0.5s
//gutil:testing_test PASSED in 0.5s
//gutil:version_test PASSED in 2.4s
//p4_fuzzer:constraints_util_integration_test PASSED in 0.6s
//p4_fuzzer:fuzz_util_test PASSED in 0.7s
//p4_fuzzer:fuzzer_showcase_test PASSED in 1.2s
//p4_fuzzer:switch_state_test PASSED in 0.6s
//p4_fuzzer:table_entry_key_test PASSED in 0.1s
//p4_pdpi:built_ins_test PASSED in 0.5s
//p4_pdpi:ir_tools_test PASSED in 0.7s
//p4_pdpi:p4_runtime_matchers_test PASSED in 0.6s
//p4_pdpi:reference_annotations_test PASSED in 0.7s
//p4_pdpi:sequencing_util_test PASSED in 0.6s
//p4_pdpi:table_entry_key_test PASSED in 0.1s
//p4_pdpi/netaddr:ipv4_address_and_network_address_test PASSED in 0.5s
//p4_pdpi/netaddr:ipv6_address_test PASSED in 0.7s
//p4_pdpi/netaddr:mac_address_test PASSED in 0.6s
//p4_pdpi/packetlib:packetlib_fuzzer_test PASSED in 16.6s
//p4_pdpi/packetlib:packetlib_matchers_test PASSED in 0.5s
//p4_pdpi/packetlib:packetlib_test PASSED in 0.1s
//p4_pdpi/packetlib:packetlib_test_runner PASSED in 0.1s
//p4_pdpi/packetlib:packetlib_unit_test PASSED in 1.9s
//p4_pdpi/string_encodings:bit_string_test PASSED in 0.5s
//p4_pdpi/string_encodings:byte_string_test PASSED in 0.5s
//p4_pdpi/string_encodings:decimal_string_test PASSED in 0.2s
//p4_pdpi/string_encodings:decimal_string_test_runner PASSED in 0.0s
//p4_pdpi/string_encodings:hex_string_test PASSED in 0.1s
//p4_pdpi/string_encodings:hex_string_test_runner PASSED in 0.0s
//p4_pdpi/string_encodings:readable_byte_string_test PASSED in 0.5s
//p4_pdpi/testing:helper_function_test PASSED in 0.6s
//p4_pdpi/testing:info_test PASSED in 0.1s
//p4_pdpi/testing:info_test_runner PASSED in 0.1s
//p4_pdpi/testing:main_pd_test PASSED in 0.0s
//p4_pdpi/testing:mock_p4_runtime_server_test PASSED in 1.7s
//p4_pdpi/testing:packet_io_test PASSED in 0.5s
//p4_pdpi/testing:packet_io_test_runner PASSED in 0.1s
//p4_pdpi/testing:rpc_test PASSED in 0.1s
//p4_pdpi/testing:rpc_test_runner PASSED in 0.1s
//p4_pdpi/testing:sequencing_test PASSED in 0.1s
//p4_pdpi/testing:sequencing_test_runner PASSED in 0.1s
//p4_pdpi/testing:sequencing_util_test PASSED in 0.1s
//p4_pdpi/testing:sequencing_util_test_runner PASSED in 0.1s
//p4_pdpi/testing:table_entry_gunit_test PASSED in 0.8s
//p4_pdpi/testing:table_entry_test PASSED in 0.2s
//p4_pdpi/testing:table_entry_test_runner PASSED in 0.1s
//p4_pdpi/utils:annotation_parser_test PASSED in 0.5s
//p4_pdpi/utils:ir_test PASSED in 0.9s
//p4rt_app/event_monitoring:app_state_db_port_table_event_test PASSED in 0.9s
//p4rt_app/event_monitoring:app_state_db_send_to_ingress_port_table_event_test PASSED in 0.9s
//p4rt_app/event_monitoring:config_db_cpu_queue_table_event_test PASSED in 0.9s
//p4rt_app/event_monitoring:config_db_node_cfg_table_event_test PASSED in 0.9s
//p4rt_app/event_monitoring:config_db_port_table_event_test PASSED in 0.9s
//p4rt_app/event_monitoring:debug_data_dump_events_test PASSED in 0.9s
//p4rt_app/event_monitoring:state_verification_events_test PASSED in 0.9s
//p4rt_app/p4runtime:cpu_queue_translator_test PASSED in 0.5s
//p4rt_app/p4runtime:ir_translation_test PASSED in 0.8s
//p4rt_app/p4runtime:p4info_verification_schema_test PASSED in 0.7s
//p4rt_app/p4runtime:p4info_verification_test PASSED in 0.9s
//p4rt_app/p4runtime:packetio_helpers_test PASSED in 0.9s
//p4rt_app/p4runtime:resource_utilization_test PASSED in 0.8s
//p4rt_app/sonic:app_db_acl_def_table_manager_test PASSED in 0.7s
//p4rt_app/sonic:app_db_manager_test PASSED in 0.7s
//p4rt_app/sonic:app_db_to_pdpi_ir_translator_test PASSED in 0.7s
//p4rt_app/sonic:hashing_test PASSED in 0.8s
//p4rt_app/sonic:packet_replication_entry_translation_test PASSED in 0.7s
//p4rt_app/sonic:packetio_impl_test PASSED in 0.6s
//p4rt_app/sonic:packetio_port_test PASSED in 0.5s
//p4rt_app/sonic:response_handler_test PASSED in 0.7s
//p4rt_app/sonic:state_verification_test PASSED in 0.6s
//p4rt_app/sonic:vrf_entry_translation_test PASSED in 0.7s
//p4rt_app/sonic/adapters:fake_sonic_db_table_test PASSED in 0.1s
//p4rt_app/tests:acl_table_test PASSED in 2.7s
//p4rt_app/tests:action_set_test PASSED in 1.2s
//p4rt_app/tests:api_access_test PASSED in 1.2s
//p4rt_app/tests:arbitration_test PASSED in 1.2s
//p4rt_app/tests:cpu_queue_name_and_id_test PASSED in 1.9s
//p4rt_app/tests:debug_data_dump_test PASSED in 1.0s
//p4rt_app/tests:fixed_l3_tables_test PASSED in 3.2s
//p4rt_app/tests:forwarding_pipeline_config_test PASSED in 5.3s
//p4rt_app/tests:grpc_behavior_test PASSED in 5.4s
//p4rt_app/tests:p4_constraints_test PASSED in 1.2s
//p4rt_app/tests:p4_constraints_test_runner PASSED in 0.4s
//p4rt_app/tests:p4_programs_test PASSED in 1.6s
//p4rt_app/tests:packetio_test PASSED in 4.1s
//p4rt_app/tests:port_name_and_id_test PASSED in 2.8s
//p4rt_app/tests:resource_limits_test PASSED in 4.3s
//p4rt_app/tests:response_path_test PASSED in 3.8s
//p4rt_app/tests:role_test PASSED in 1.3s
//p4rt_app/tests:state_verification_test PASSED in 2.1s
//p4rt_app/tests:vrf_table_test PASSED in 1.8s
//p4rt_app/tests/lib:app_db_entry_builder_test PASSED in 0.0s
//p4rt_app/utils:authz_logger_test PASSED in 1.0s
//p4rt_app/utils:event_data_tracker_test PASSED in 0.0s
//p4rt_app/utils:lru_cache_test PASSED in 0.0s
//p4rt_app/utils:metric_recorder_test PASSED in 1.4s
//p4rt_app/utils:table_utility_test PASSED in 0.7s
//sai_p4/instantiations/google:clos_stage_test PASSED in 0.5s
//sai_p4/instantiations/google:fabric_border_router_p4info_up_to_date_test PASSED in 0.0s
//sai_p4/instantiations/google:middleblock_p4info_up_to_date_test PASSED in 0.1s
//sai_p4/instantiations/google:sai_p4info_fetcher_test PASSED in 0.6s
//sai_p4/instantiations/google:sai_p4info_test PASSED in 0.9s
//sai_p4/instantiations/google:sai_pd_proto_test PASSED in 0.0s
//sai_p4/instantiations/google:sai_pd_util_test PASSED in 0.5s
//sai_p4/instantiations/google:tor_p4info_up_to_date_test PASSED in 0.0s
//sai_p4/instantiations/google:union_p4info_up_to_date_test PASSED in 0.1s
//sai_p4/instantiations/google:wbb_p4info_up_to_date_test PASSED in 0.0s
//sai_p4/instantiations/google/test_tools:table_entry_generator_helper_test PASSED in 1.5s
//sai_p4/instantiations/google/test_tools:test_entries_test PASSED in 0.8s
//sai_p4/instantiations/google/tests:p4_constraints_integration_test PASSED in 0.7s
//sai_p4/tools:p4info_tools_test PASSED in 0.6s
//sai_p4/tools:packetio_tools_test PASSED in 1.1s
//sai_p4/instantiations/google/test_tools:table_entry_generator_test PASSED in 13.5s
Stats over 5 runs: max = 13.5s, min = 1.4s, avg = 10.2s, dev = 4.5s

Executed 117 out of 117 tests: 117 tests pass.
INFO: Build completed successfully, 122 total actions
bibhuprasad@bb37b62b1ae4:/sonic/src/sonic-p4rt/sonic-pins$

[bibhuprasad-hcl]

Co-authored-by: Srikishen Pondicherry Shanmugam kishanps@google.com

[divyagayathri-hcl]

@bhagatgit, Could you please review.
Thanks.