Cosmos SDK client implementation

[Wizdave97]

Implement core relayer traits for a Cosmos chain handler

[akc2267]

The requirements for this ticket are to implement each method of each interface from here: https://github.com/ComposableFi/hyperspace/blob/seun-testsuite/primitives/src/lib.rs

For example:
IbcProvider

• query_latest_ibc_events
• query_client_consensus
• query_client_state
• query_connection_end
• query_channel_end
• query_proof
• query_packet_commitment
• query_packet_acknowledgement
• query_next_sequence_recv
• query_packet_receipt
• latest_height_and_timestamp
• query_packet_commitments
• query_packet_acknowledgements
• query_unreceived_packets
• query_unreceived_acknowledgements
• channel_whitelist
• query_connection_channels
• query_send_packets
• query_recv_packets
• expected_block_time
• query_client_update_time_and_height
• query_host_consensus_state_proof
• query_ibc_balance
• connection_prefix
• client_id
• client_type
• query_timestamp_at
• query_clients
• query_channels

[adizere]

Tagging this info here as it will come in handy:

The following is a test suite used for parachain <> parachain messaging:
https://github.com/ComposableFi/hyperspace/blob/seun-testsuite/testsuite/tests/parachain_parachain.rs

[adizere]

Is this considered done?