Qlibs

- Feature: SpriteMaster can now load PIL images and ImageData directly.
- Feature: texture filter can now be specified for SpriteMaster.
- Feature: absolute paths can be used instead of resource paths everywhere. Relative paths are also used directly when they couldn't be resolved to anything else.
- Feature: font kerning.
- Feature: a new way to set up text formatting.
- Fix: multiple fonts not working. At all.

- Fix: turns out glyph.bearing.x was ignored. Not anymore, resulting in a more correct font rendering.

- Fix: use integer values for scissor test
- Ref: use enum instead of str in node types

- Fix: V1 node renderer sometimess messed up draw order

- C modules are now in a separete module, Qlibs Cyan

- Fix: leaking in basic_shapes
- Matrix4 C module temporaly disabled