old hardfork tests spend too much time incrementing blocks

[BrannonKing]

durations.txt

See the attached file for unit test runtimes. Notice that the old hardfork tests take too long. We have a better mechanism to bring the hardfork block numbers in line with the number of blocks already mined in the unit test. I.e. from the normalization fork:

    int currentHeight = chainActive.Height();
    const Consensus::Params& consensus = Params().GetConsensus();
    const_cast<Consensus::Params&>(consensus).nNormalizedNameForkHeight = currentHeight + 2;

Feel free to encapsulate this somehow.

Acceptance Criteria

These tests have been sped up: hardfork_claim_test, hardfork_support_test, claimtriebranching_hardfork_disktest, claim_expiration_test

Definition of Done

• [ ] Tested against acceptance criteria
• [ ] The project builds without errors
• [ ] Peer Code Review performed

[Techievena]

I want to work on this. Can you please help me with what needs to be done.

[BrannonKing]

done via cherry-pick