Allow redelegation to the same pool in Conway

[paweljakubas]

• [x] Change of re-delegation logic.
• [x] Adjust unit tests
• [x] Add new unit tests
• [x] Add integration testing showing the case
• [x] Babbage: re-delegation to the same pool -> ERROR
• [x] Conway: re-delegation to the same pool -> ERROR
• [x] Conway: re-delegation to the same pool + new vote or re-vote other than recent -> OK
• [x] Conway: re-delegation to the same pool + vote the same again -> ERROR
• [x] Conway: re-delegation to the different pool + vote the same again -> OK
• [x] Conway: vote the same again -> ERROR
• [x] check joinStakePools
• [x] add handleDelegationVoteRequest

Comments

In order to run integration tests do the following: (a) Babbage

just integration-tests-cabal-match TRANS_NEW_JOIN_01f

(b) Conway

just conway-integration-tests-cabal-match TRANS_NEW_JOIN_01f

Issue Number

adp 3312