Added comments to the gui.event package

at.jku.ssw.cmm.gui.event
Added comments to the gui.event.debug package

at.jku.ssw.cmm.gui.event.debug.*
Added comments to the gui.exception package

at.jku.ssw.cmm.gui.exception
Added comments to the gui.file package

at.jku.ssw.cmm.gui.file.*