depend on buildsupport parent
add the ability to specify wrapper.* properties as system properties when running the test

the original use case was a test launched by failsafe may want to explicitly set the wrapper.java.command value to some other java than the java found on the PATH

The overrides now get printed at the end of wrapper.conf with comments indicating where the property came from to ease debugging

Example:

# Added by sisu-bundle-launcher
#  system overrides
wrapper.system.prop=bar
#  explicit overrides
wrapper.explicit.prop=baz
code reformat only