HGL Suite Code

changed some variable and method names to more descriptive ones

finished making the canvas available to all rendering types in interpreter

preparations to make the canvas available to all rendering types in interpreter

HGL::Project needed a dynamic_cast instead an old C-style cast

debugging

* Debian packaging updated
* imageoutput moved completely to interpreter

mask added

alpha blending hinzugefügt

* formatting
* removed shadowed declaration

freetype rendering completed