EPIC: Rewrite and Simplify CLI Tests

[tac0turtle]

Summary

Currently CLI tests require the use of the in-process Tendermint network defined in github.com/cosmos/cosmos-sdk/testutil/network. This necessitates the need to run the tests sequentially and with the race detector enabled. In addition, it requires too much overhead to actually run, when we don't really need a simulated network to properly test the CLI commands. Furthermore, it also, indirectly, requires the use of simapp complicating dependency management and module release workflows.

This EPIC aims at rewriting CLI tests to be completely independent of github.com/cosmos/cosmos-sdk/testutil/network, using a table-driven approach with Tendermint RPC client mocks. We will have another testing EPIC to write more through and scoped integration tests for each module.

ref: #12527

TODO

• [x/auth] Refactor x/auth CLI tests to use Tendermint mock #13201
• [x/authz] Refactor x/authz to CLI tests to use Tendermint mock #13487
• x/bank
• refactor x/distribution cli tests to use TendermintMock #13479
• staking
• evidence
• Refactor x/crisis CLI tests to Tendermint mock #12873
• feegrant
• genutil
• refactor x/gov cli tests to use TendermintMock #13480
• group
• simplify mint cli tests #12760
• nft
• slashing
• upgrade

[tac0turtle]

closing this as all modules have been migrated.