Using "Native Image" for JVM-based languages

[ColourGrey]

A look at the results of the benchmarks shows that the JVM-based languages pay a heavy price in terms of memory consumption, a significant part of it being probably due to the JIT kicking in. It is why I would like to suggest running the tests written in these languages with the Substrate VM, i.e. compile them to native binaries with the "native-image" command that accompanies the Graal VM.

I don't suggest dropping the current JVM tests, but rather add to them Substrate VM tests.

Thank you.