[mlvm] Add documentation and javaDoc to public/protected API for vm/mlvm test libraries

These test have many issues and unstable, intermediate reproducible behaviour. The logic and test scenarios is very munged. We have to review them deeply and the first step is documenting all shared libs/frameworks in them.

- vm/mlvm/share
- vm/mlvm/tools
- vm/mlvm/indy/share
- vm/mlvm/cp/share
- vm/mlvm/meth/share
- ...