Sub-projects cleaning

- Java to Uml :
* Corrections on some incorrect comments.
- Excel Injector :
* Addition of methods and a main class to generate an EXCEL file.
- Excel to Togaf :
* Name modification for the file representing the mapping between - -
Excel and Togaf :
* Deletion of useless library and models.
* Corrections of the module and corresponding library.
- SVG date injection :
* Deletion of useless directory 'ressources'.
- SVG generator :
* Name modification of the file containing mapping between Togaf project
phases and SVG color (DCNS representation).
* Corrections of the module and its corresponding library.
* Addition of 'stroke_width' in the SVG metamodel, for all
'GraphicalElement'.
* Updating 'png's used by the SVG generated file.
- XLSGenerator :
* Deletion of useless models.
* Modification of the Excel file 'XLSTest'.