fix(plantuml): pass plantuml.include.path property to native plantuml binary

[mlyczek]

I have found a way of passing the plantuml.include.path property to the native plantuml library.

It's worth noting that, plantuml has a -D parameter which sets value of global preprocessing variable as described here: https://plantuml.com/command-line, however when built using GraalVM into native library, the GraalVM handling of the -D parameter (described here: https://www.graalvm.org/latest/reference-manual/native-image/guides/use-system-properties/) takes precedence, which is the reason why this fix works.

I have added debug log message to add ability to see the exact plantuml command parameters which makes it easier to debug any problems with it, if necessary.

Please let me know what do you think.

Fixes #1765

[ggrossetie]

Thanks a lot @mlyczek
It looks good 👍🏻