feat: Splitting GatewayCTMDeployer (#1964)

We'll have to reuse the same deployer on EVM chains, so it has to be
split into multiple contracts to ensure that it fits into EVM limits.

Note, that for deployments on GW, it will rely on the presence of a
deterministic CREATE2 factory.

I have NOT yet deeply reviewed it, so comments may contains occasional
errors, this PR is to demonstrate what the feature will look like
overall.

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Author: 2 people