feat: automatic protocol fee payout

[shaspitz]

Describe your changes

• Removes prev functionality requiring the protocol fee recipient to submit a tx to receive funds
• Removes ability to not specify a protocol fee recipient
• Adds automatic fee payout functionality that pays accumulated protocol fees to the appropriate address after a configurable amount of blocks
• Misc documentation/naming refactors

Checklist before requesting a review

• I have added tests that prove my fix is effective or that my feature works
• I have made corresponding changes to the documentation
• I have tested this code by deploying the infrastructure and ensuring that commitments are being settled

[ckartik]

What's going to trigger the fee payouts here?

[shaspitz]

What's going to trigger the fee payouts here?

Oracle invoked transactions

[Mikelle]

What if the oracle didn’t perform any slashes or rewards, but we still want to withdraw protocol revenue? Do we want to have a mechanism to withdraw those funds without relying on the slashing/rewarding mechanism?

[shaspitz]

What if the oracle didn’t perform any slashes or rewards, but we still want to withdraw protocol revenue? Do we want to have a mechanism to withdraw those funds without relying on the slashing/rewarding mechanism?

This edge case most likely won't happen as after 1 hour, it would take a single slash/reward invocation to trigger the fee payout. But it wouldn't hurt to cover the edge case anyways 👍, see 9bc6976