SIP-420: Treasury market

[dbeal-eth]

this implements sip-420.

notes:

• in addition to implementing the actual contract for SIP-420, it was also necessary to add the migrateDelegation function to the core system. This is becuase it needs to be possible for a user to actually migrate their account from the current v3 SC pool without repaying their debt. (on optimism the legacymrket can be directly conneted)
• the treasury market is designed to be able to work with other markets, preserving the portability of liquidity
• testing a new way of testing contracts in the v3 repo. we generate a foundry script with cannon, and then run tests against the generated script. So far this seems to be working well. Coverage and everything works wrt tests. This script can even be copied anywhere since it has no dependencies (outside of forge-std).

some deployment invariants exist WRT the creation of the pool (ex. limit to only one collateral type, no minting through v3, etc.). For more information see the corresponding deployments PR Synthetixio/synthetix-deployments#619

[CalabashSquash]

just two nitpicks

[CalabashSquash]

nit: should there be a comment here? I think it would be worth adding anyway

[CalabashSquash]

Nit

Suggested change

	if (power > 100) {
	revert ParameterError.InvalidParameter("debtDecayPower", "too high");
	}
	if (power > 100) {
	revert ParameterError.InvalidParameter("power", "too high");
	}