Conform proxies to ERC1967 and add transparent proxies

[ItsNickBarry]

Proxies no longer use Ownable for upgrades (includeing diamondCut).

Storage layout seed string format has been changed to solidstate.layout.[name] because I thought it would be funny if ERC1967Storage complied with both ERC1967 and ERC7201, and I needed the resulting value to be less than the ERC1967 implementation slot.

[ItsNickBarry]

I would like to add a UUPS-style proxy, but ERC-1822 is not a real standard, and it contradicts ERC-1967.

I would also like to move the transparent proxy admin functions into a shared module, but there's no logical place to put it. This would also allow adding an equivalent to SafeOwnable.

[ItsNickBarry]

It would be nice if DiamondBeacon inherited from Beacon, but that would involve appending function signature as metadata to the implementation() function. Might make sense if a beacon equivalent of DiamondFallback were added.