Added lock and visibility functionalities in edition view.
Add lock, unlock, set visible and set invisible actions.
Added provisional buttons for use the new functionallity.
GenerateSkinMojo now creates .fnt from .ttf or .otf files.
ExtendedeSkin loads BitmapFonts that have multiple pages.
Simplified MeshHelper. Now the input is processed as local.
BrushStrokes saves elements with the origin centered.
Merge pull request #795 from gorco/LockAndVisible

Lock and visibility functionalities
Merge pull request #797 from RotaruDan/brushStrokesImprovements

Brush strokes improvements
Merge pull request #794 from RotaruDan/newEngineFont2

TTF 2 FNT generation process.