Enhance deploy signature to support strategy

[kanej]

Execution engine takes a execution strategy. This should be exposed through deploy, with a default of the basic strategy.

For consideration, do we need a reconcile step for strategy? This is so that, say a defender strategy, could check and throw if the detects a deployment that has previously run on an old version.

[kanej]

We are tackling this with the beta follow on work. We will do it as part of the create2 work.

Adding strategy to the signature, adds the entirety of our inner state; so we need to rework strategy to be future based first.