* Add more pixmap fonts
* Design ui system
* Add color utilities
* gfx::painter should be 2D only
* gfx: think of some concepts like Renderable, Renderer, and how to wire those correctly
* gfx: design & implement simple rendering pipelines
* pcg: add clean Generator, Sampler & Pixmap processor concepts, uniformize interfaces, be type & dimension agnostic when possible
* pcg: add more vector & point distributions