Enable specific features via cli for solana-genesis

[gregcusack]

v1.17 and v1.18 are incompatable with cluster_type == Development. All features are enabled by default. Specifically the feature timely_vote_credits in v1.17 is incompatable with v1.18. In fact, timely_vote_credits should not be turned on in v1.17 at all.

One way to fix this is to comment out the timely_vote_credits feature in (sdk/src/feature_set.rs)[https://github.com/anza-xyz/agave/blob/master/sdk/src/feature_set.rs#L822-L1020]. But the is cumbersome and doesn't allow much flexibility. Plus other developers have complained that enabling and disabling features to check compatibility between versions is a pain and time consuming. So we need a way to

1. enable all features by default (already exists)
2. pass in a set of features that should be activated, leaving all other features inactive
3. pass in a set of features that should not be activated, leaving all other features active

This probably has to be done in agave repo.....