Implemented interface for CompilerPassListener in JRuby. It is just a stub
Add of JRubyVisualizer module with a function injecting the compiler pass listener
simple boolean function to check if visualizer is active
Added puts for listener, in order to see if the listener was correctly injected to IRManager
Simple visualize module method for a dry run on ruby source; Without starting the GUI, yet. Just to test the listener
Fixed import and added a simple main for testing purposes
Fixed implements to correct package of CompilerPassListener
Added java require and a newline at end of file