Add rpath for common lib locations for jpackageapplauncher

A DESCRIPTION OF THE PROBLEM :
Currently, the jpackageapplauncher is linked without any additional rpath, making it impossible to include dynamic libraries in the osx app bundle.

The proposed change would include the 2 common lib locations Frameworks and PlugIns as rpath, so the developer can add libraries which are loaded using dlopen into these folders.

See PR: https://github.com/openjdk/jdk/pull/11922