New cli commands

[rferens]

This PR expands the CLI with new commands for managing integrity blocks.

• CLI Improvements:
  • Updated the wbn-sign CLI with a new command-based interface (sign, add-signature, remove-signature, replace-signature, and info), see README for more info.
  • Added colored console output for better readability using the colors package.

This is a continuation of #913, which was split into API(original PR) and CLI(this PR) parts.