op-chain-ops: fund L1 devnet accounts

This commit uses the deploy config value `fundDevAccounts` to determine
if the standard `test test ...` accounts used by hardhat/foundry
should be prefunded with ether. This makes testing using the
devnet a bit easier.

Note that this code will be removed in the future because it is part
of the devnet where the genesis is prepopulated with the contracts.
It is not tenable to maintain 2 devnets, one with prepopulated genesis
and one with a deployed genesis.

op-chain-ops/genesis/layer_one.go

@@ -244,6 +244,11 @@ func BuildL1DeveloperGenesis(config *DeployConfig) (*core.Genesis, error) {
 		return nil, err
 	}
 
+	if config.FundDevAccounts {
+		FundDevAccounts(stateDB)
+		SetPrecompileBalances(stateDB)
+	}
+
 	for _, dep := range deployments {
 		st, err := stateDB.StorageTrie(dep.Address)
 		if err != nil {