Code Generator for Eclipse Code

Add the source foulder to the extension point

Added test fragments for headless tests

Added forder for test fragments of headless tests

Added test for template generation with AST improvement

Don't try to add jetemplate if jetemplate is null

Added tests for jetemplate with AST, deserialisation of Jetemplate and generation of Template

Implemented generator retrieving through the new method bundle@... but left the old way because it is still used when generationg through the wizard

Reduced the UI dependencies

Removed ui plug-in from dependency list

Import the moved class from the correct package