Implement Cardano Stake Distribution in client CLI

[jpraynaud]

Why

The client CLI should be able to list, get details and certify Cardano stake distribution.

What

Implement the Cardano stake distribution signed entity type in the Mithril client CLI.

How

• Implement new commands in mithril-client-cli as unstable:
  • cardano-stake-distribution command with alias csd
  • cardano-stake-distribution list
  • cardano-stake-distribution download latest
  • cardano-stake-distribution download $EPOCH
  • cardano-stake-distribution download --hash $ARTIFACT_HASH or cardano-stake-distribution download-by-hash $ARTIFACT_HASH
  • cardano-stake-distribution download $HASH
• Verify artifact download by the client cli in the end to end test
• Add new verification step in client Manual multi-platform GitHub action