Add option to remove MahApps from Generated Code

[Bob Brown (utech626)]

When using other tool kits like Telerik, Syncfusion or Infragistics it would be very beneficial to have the option to not include the MahApp libaries

[plettb]

I strongly agree.

[Manu (ManuProd)]

Same here, I would like to have the possibility to remove MahApps library