Add a CLI command for converting entities' ids to their staking account addresses

[tjanez]

SUMMARY

After #2940, account address are no longer represented by entities' ids, i.e. public keys, directly. Instead, they are represented by a truncated hash of a corresponding entity's public key, prefixed by a 1 byte address version.
Also, they are no longer encoded with Base64 encoding, but rather use the Bech32 encoding.

It would be useful to provide a CLI command that would convert a Base64-encoded entity id (public key) to its Bech32-encoded staking account address.

ISSUE TYPE

• Feature Idea

ADDITIONAL INFORMATION

Also consider augmenting the output of other CLI commands with staking account addresses where appropriate.