Build script property allowing to manually specify compiler output path for Jmix Studio hot-deploy mechanism

[Gasloff]

In some cases (e.g. for non-standard multi-module project configuration) Jmix Studio may fail to determine module compiler output path. This affects hot-deploy, as Studio can't properly resolve classpath for hot-deploy compilation process.

If user faced such issue, it is now possible to manually specify module compiler output via special property in build script:

ext.jmixCompilerOutputPath = "build/classes/java/main"

Path should be specified relatively to the folder containing build script.

Jmix Studio will resolve the value during Gradle sync and use it in hot-deploy compilation process classpath