Investigate Docker-based local execution

[jesse-gallagher]

It should be doable to use docker-java or similar to build a local container from either the official or community Domino Docker images and use that to do the actual execution, especially since the process already involved spawning a sub-process anyway.

It would make sense for this to allow specification of an ID file and other parts to use to do the actual building, and to otherwise build using a temporary-spawned name from a domino-config.json file.

[jesse-gallagher]

The initial commit adds support for auto-configured hclcom/domino:12.0.2 containers, which are useful for compilation and export. A few things remain to cover other capabilities:

• Adding classpathJars to the ndext directory
• Allowing specification of a custom base image
• Allowing specification of a custom server ID
• Potentially allowing specification of advanced server-setup properties: existing server, connection docs, etc.