Code Generator for Eclipse Code

Fix formatting of method

Added help buttons on the UI for the generator and reference implemenetation

Added Context help button for jetemplates

Extracted the method for generation the help button

Fixed problems with unselected generatos and help call

Added the functionality for#45 Context Help for generators

Fixed some problems with the new validation that have arrision with the test possiblie input of inpuf file extension or xml input specified

Fix probplem in validation through errourous initialisation #73

Added validation for the new feature #44

Refresh the parent folder before opening the artefact. This resolves #67