[FEATURE] - Add `vote_reg_deleg_cert` and `stake_vote_reg_deleg_cert` certificate type

[CarlosLopezDeLara]

What

Add CDDL's certificates to CLI

• stake_reg_deleg_cert :
• vote_reg_deleg_cert
• stake_vote_reg_deleg_cert

Why

These had lower priority during Conway implementation

Personas

• SPOs
• dApp Devs
• Exchanges
• Wallets
• 3rd party tools
• ADA holders

Definition of Done (DoD)

• Acceptance Criteria + User Stories & DoD created and singed-off (by PO, dev & test owners)
• Builds successfully on CI
• Code & Test review (as per Acceptance Criteria)
• There is documentation and/or examples for the new functionality (usage/response)
• Log/record changes on Vnext (or similar depending on what we adopt)
• Ticket number(s) included in PR description
• All Acceptance Criteria met and covered by dev/unit/property/integration tests
• System/E2E automated tests + System Test Engineer Owner Sign-off

NOTE: Ideally, we should merge only fully implemented and tested features into the master branch.
So all the above steps are required for the PR to be merged.
In order to avoid the PRs becoming stale and requiring to be rebased on master, these can be merged
after a reasonable time (current agreement is 3 days) if the System Test Engineer Owner's sign-off
was not provided (last step in the DoD).

IMPORTANT: Any deviation from the plan should be discussed and agreed as a comment in the Feature file.

Sign-off

• Product Owner
• Dev Owner
• System Test Engineer Owner

Related PRs

1. PR # here

Acceptance Criteria

Acceptance Criteria & User Stories define here (or in a separate file (linked here) for a big feature)

Example - IntersectMBO/cardano-node#4453