Generate a L1 and a L2 dev genesis, by instantiating a script Host, loading the Deploy.s.sol and L2Genesis.s.sol, and running the deploy functions that are applicable.

This depends on some Deploy.s.sol improvements, to make the right deploy functions configurable and accessible. This is being improved as part of OPSM 0.5.

This can also improve with L2genesis.s.sol changes, to make the right deploy functions configurable and accessible. This might be part of OPSM 0.5 (focused more on L1 deployment however).

In the meantime we can try and hack around it with partial DeployConfig.s.sol overrides and temporary script hacks/changes to the genesis script.