Move vote and BLS types to a module under `votor/src`

[AshwinSekar]

We want to retire the vote program repo. Move all useful types back to votor.

[ksn6]

#313 solves this. #315 is doing cleanup afterwards.

[AshwinSekar]

Thanks for taking this, we'll want to remove all vestiges of the new vote program, instruction.rs mod.rs etc. and only keep vote.rs and bls_message.rs

Additionally lets move this to the votor crate under a new module, something like votor/src/vote/ or votor/src/messages. It will be easier to merge to agave master if we can bundle most of our changes in one crate.

[ksn6]

Sure thing! For some color, here are the files under vote/src/alpenglow/:

accounting.rs: will remove this after we entirely drop the dependency on alpenglow-vote; I can remove this file now, but then I'd have to also update alpenglow-vote to ensure that the various structs follow the same ABI, which doesn't seem useful given that we're getting rid of alpenglow-vote

bls_message.rs: N/A

certificate.rs: yep, this can be removed now once we move stuff to votor/src/

instruction.rs: can remove this once vote account initialization doesn't happen via the vote program

mod.rs: can do this last

state.rs: waiting on the VoteStateV4 struct to show up in an agave PR prior to removing this

vote.rs: N/A

I'm thinking that the order of operations is:

• Wait on VoteStateV4 to appear; once this happens, get rid of state.rs (Integrate VoteStateV4 and grab the BLSPubkey from there instead #295)
• Initialize Alpenglow vote accounts outside of the vote program (Add vote instruction in the old vote program for populating BLSPubkey + SIMD #296)
• Clean up the rest of the above accordingly

[wen-coding]

Those are now under votor-messages.