Add RPC and dev command for Anoma.Protobuf.IntentsService.Verify

[paulcadman]

⚠️ based on #3239 so rebase on main and mark as ready once that is merged.

This PR adds RPC and dev command for Anoma.Protobuf.IntentsService.Verify:

$ juvix dev anoma intents --help
Usage: juvix dev anoma intents COMMAND

  Subcommands related to the Anoma indexer

Available options:
  -h,--help                Show this help text

Available commands:
  verify                   Call the Anoma.Protobuf.IntentsService.Verify
                           endpoint

This PR also adds tests for verify. Though we cannot test invalid intents because of:

anoma/anoma#1676