Refactor more integration tests to consider multiple consumers

[shaspitz]

Problem

#475 is a good start to making our integration tests consider multiple consumers. But further work is needed.

Closing criteria

Build out and improve integration setup code, and integration tests themselves to consider multiple consumers. This issue can potentially be split into more granular ones if needed.

Problem details

Regarding integration setup:

• Multi-consumer capable e2e tests #475 refactors CCVTestSuite.SetupTest(), and CCVTestSuite.SetupCCVChannel() to be functional for multiple consumers.
• CCVTestSuite.SetupTransferChannel() and various other helpers still need to be refactored for multiple consumers

Regarding integration tests themselves:

• Multi-consumer capable e2e tests #475 makes TestRelayAndApplySlashPacket consider multiple consumers, but all other integration tests still use a single consumer

TODOs

• Labels have been added for issue
• Issue has been added to the ICS project

[danwt]

Hey, can this be closed yet?

[shaspitz]

This issue is not solved yet, and pretty important imo. Most integration tests still consider only one consumer

[MSalopek]

Tests have multiple consumers and test key assignment features on one of the consumers.

Closing as completed. I cannot find the issue that solved this because there were many issues adding small changes + a large cosmos-sdk v47 refactor.