This PR adds support for Anoma.Protobuf.IndexerService.ListUnrevealedCommits via the CLI:

$ juvix dev anoma indexer list-unrevealed-commits --help
Usage: juvix dev anoma indexer list-unrevealed-commits [-o|--output OUTPUT_FILE]

  Call the Anoma.Protobuf.IndexerService.ListUnrevealedCommits endpoint

Available options:
  -o,--output OUTPUT_FILE  Path to output file
  -h,--help                Show this help text

It also adds a test suite for Anoma client transaction submissions / verification.

The Swap example using the Resource Machine API is tested with the following flow:

1. Compile the Swap example
2. Submit the compiled output to the prove endpoint - capture the expected commitment in a trace
3. Submit the proved output to add-transaction
4. Poll ListUnrevealedCommits until a commit appears and compare it with the commitment we captured in 2.