include sdkman in downstream UDI container?

As people are continuning to ask for it... I did some initial investigation into how we MIGHT be able to use sdkman in an airgapped env, via a Brew build.

https://gist.github.com/nickboldt/26abebff75e2e4f5d2bf105d8da07605

We'll need:

• a way to package up the ~/.sdkman folder to get it into brew, and update it at intervals (Jenkins + rcm-guest + fetch-artifacts-url.yaml, or PNC + fetch-pnc.yaml)
  • might be able to just pull sources from https://github.com/sdkman/sdkman-cli/ and use them directly, too.

• use it to ONLY reference linked installations of JDK and maven

• to add config to the entrypoint for the udi container (or to the ~/.bashrc)

Might also need to fork the project:

https://github.com/sdkman/sdkman-cli/pull/1166