CLOUDSTACK-8336: Adding tests for shared networks with basic operations related to network/router restart and acquire IP

[gauravaradhye]

Adding following basic test cases for shared networks.

1. Restart Network
2. Restart Router
3. Stop and Start Router
4. Acquire Public IP in network and disassociate

Added a function in common file to verify the router state.

The verification steps are written in detail in the test cases.

Also made following changes in existing code.

1. Fixed the pep8 issues already present in the file.
2. Remove hard coded Services dictionary
3. Improved existing code

Logs:
Test Shared Network ALL ... === TestName: test_createSharedNetwork_All | Status : SUCCESS ===
ok
Test Shared Network with scope account ... === TestName: test_createSharedNetwork_accountSpecific | Status : SUCCESS ===
ok
Test Shared Network with scope domain ... === TestName: test_createSharedNetwork_domainSpecific | Status : SUCCESS ===
ok
Test Shared Network with scope project ... === TestName: test_createSharedNetwork_projectSpecific | Status : SUCCESS ===
ok
Test Shared Network with used vlan 01 ... SKIP: skipped - This is a redundant case and also this is causing
issue for rest fo the cases
Test Shared Network with used vlan 02 ... === TestName: test_createSharedNetwork_usedVlan2 | Status : SUCCESS ===
ok

Test Vm deployment with multiple shared networks ... === TestName: test_deployVM_multipleSharedNetwork | Status : SUCCESS

ok
ES1621:Allow creating shared networks with overlapping ... === TestName: test_escalation_ES1621 | Status :
SUCCESS ===
ok
Test shared Network with subdomainaccess=False ... === TestName: test_networkWithsubdomainaccessFalse | Status : SUCCESS ===
ok
Test Shared Network with subdomainaccess=True ... === TestName: test_networkWithsubdomainaccessTrue | Status : SUCCESS ===
ok
Test reboot router ... === TestName: test_reboot_router | Status : SUCCESS ===
ok
Test restart shared Network ... === TestName: test_restart_network_1_True | Status : SUCCESS ===
ok
Test restart shared Network ... === TestName: test_restart_network_2_False | Status : SUCCESS ===
ok
Test shared network Offering 01 ... === TestName: test_sharedNetworkOffering_01 | Status : SUCCESS ===
ok
Test Shared Network Offering 02 ... === TestName: test_sharedNetworkOffering_02 | Status : SUCCESS ===
ok
Test Shared Network Offering 03 ... === TestName: test_sharedNetworkOffering_03 | Status : SUCCESS ===
ok
Test stop and start router ... === TestName: test_stop_start_router | Status : SUCCESS ===
ok
Test VM deployment in shared and isolated networks ... === TestName: test_deployVM_isolatedAndShared | Status : SUCCESS ===
ok
Test acquire IP in shared network ... === TestName: test_acquire_ip | Status : SUCCESS ===
ok

[srikanteswartalluri]

Looks good to me.