This ties together the various capabilities in pkg/ and orchestrates them. The phases are:
- build local artifacts per input template specification
- put them where they can be accessed at runtime by kurtosis
- run the deployment
- collect useful information and output it for downstream consumption

Also provide sample devnet definitions

Those are just starting points. We'll need to come up with definitions
that actually make sense.

Note that there is a temporary workaround for op-deployer image:

We need http locator support, which has been merged into op-deployer,
but the current version at HEAD doesn't quite work with kurtosis yet.

We'll fix that separately, at which point we'll be able to point to a
localDockerBuild of "op-deployer" just as well, if we want to.