feat: added voting delay, configurable delay, voting, and submission periods, and checkpoints for periods

[dd0sxx]

Motivation:

closes #3

Modifications:

• Added checkpoints for period pcts
• added voting delay
• added default split of 25% delay, 50% voting period, 25% submission period
• added setters and getters that use checkpoints
• added new tests to make sure voting delay works
• refactored old tests to work with voting delay

nonrelated changes in this pr:

• reorganized some events alphabetically
• deleted commented out constructor tests

Result:

we now have a voting delay, and checkpointed / configurable period pcts.

[0xrajath]

We can bump this up right to fill the entire word. I know it makes no difference to the actual Pct, but if I remember right it's cheaper to access a full word (i.e 256) vs less than that.

[0xrajath]

But we can leave it as is if we want to be consistent on using uint16 for Percentages everywhere.

[dd0sxx]

uint16 makes the most sense because the max value is 10000 anyways and uint8 is not enough.

[dd0sxx]

let's let the auditors golf this i don't think we should worry about that in this pr

[0xrajath]

@AustinGreen @dd0sxx Something for us to consider as a follow up to this PR: We can pass this in at deploy time similar to Quorum Pct and have it all wrapped as a struct called CasterConfig. This gives us way more flexibility at deployment time to put in another configuration instead of having to create an action to first deploy and then update.

I would bias towards doing that.

[AustinGreen]

@0xrajath yeah let's track this an issue and address it in a follow up PR

[github-actions]

Coverage after merging theo/update-submission-period into main will be

88.38%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src/token-voting
LlamaERC20TokenActionCreator.sol	87.50%	50%	100%	100%	43–44
LlamaERC20TokenCaster.sol	92.31%	50%	100%	100%	43
LlamaERC721TokenActionCreator.sol	84.21%	50%	100%	100%	43, 45–46
LlamaERC721TokenCaster.sol	87.50%	50%	100%	100%	43, 45
LlamaTokenActionCreator.sol	84.62%	68.18%	85.71%	91.67%	125–126, 271, 271–274, 274, 274, 280–281
LlamaTokenCaster.sol	81.61%	79.27%	78.13%	83.67%	209–210, 403, 408, 408, 408–410, 410, 410–414, 416, 434, 443, 443, 443–445, 445, 445–449, 451, 535–536, 544, 544–547, 547, 547, 553–554, 559–560
LlamaTokenVotingFactory.sol	100%	100%	100%	100%