Cronokirby/lqt vote plan

[cronokirby]

Stacked pr on #5077, please review and merge that first.

This implements all of the bits and bobs necessary to make pcli tx lqt-vote work. I ran a devnet and tested that you can submit votes. The events for voting do get emitted, but there seems to be some issue with either the code or the setup I had in terms of rewards actually being distributed.

To test this pr, spinning up a devnet, or hitting a testnet post #5077 patch would work.

Checklist before requesting a review

• I have added guiding text to explain how a reviewer should test these changes.

• If this code contains consensus-breaking changes, I have added the "consensus-breaking" label. Otherwise, I declare my belief that there are not consensus-breaking changes, for the following reason:

  Not consensus breaking actually, relative to the protocol branch, or at least, it shouldn't be, since this only touches the client side of things.

[cronokirby]

(wrong branch, woops)