fix: config item initialization

[nftchance]

Imagine, you are running a strategy on Uniswap. You generate references for any piece of the protocol that is consumed by your Strategy. Then, at compile time it will error out due to missing imports rather than having properly been built pre-access at runtime.

To implement support for this, strategies should be declared, but not initialized in the config. The engine will initialize them based on the args provided.

[nftchance]

This PR will include a migration to native multichain support being merged in as the config will already experience a breaking change. Good to go ahead and do this now before putting it in the hands of the people.

[nftchance]

This is going to be a huuuuge pain. Don't want to solve this right now as it is becoming a blocker and has a simple fix until I find the right solution. If someone is super bothered by it, you can pick this up and submit the PR yourself if you need it before I get to it.