[Substrate] Add basic request status check CLI command

[nmlinaric]

Description

We need CLI command that would enable quick debugging of specific Sygma messages (bridging requests). Based on one information, provide statuses of deposit and execution transactions for this request.

Implementation details

Follow implementation pattern of already implemented CLI commands. As first request selector we need to support deposit transaction hash.

suggested CLI flags:
--env - define environment (required flag)
--deposit - deposit transaction hash

Acceptance Criteria

• Test CLI to check statuses of requests on testnet
• Update README with instuctions