Detour: Prefixed static nav with 'dtStat', this includes polys and poly refs too.
imgui: Made imgui code not to use id:s anymore, since there were way too many id clashes.
imgui: Separated the rendering code into its' own file, changed prebaked font to use stb_truetype instead, removed glfont.
imgui: Added 'disabled' property to widgets.
Recast: exposed single triangle rasterization into the recast api.
Demo: Changed the debug draw validation to be "soft", easier to demo now.
- added rcFixupAdjacentContours which adjust adjacent contour sets so that that they share all vertices (still buggy!)
- changed the demo stucture to handle tiled navmesh generation process (still ugly)
- the performance results are put into a struct instead of logged immediatelly
- added ChunkyTriMesh class which allows to partiotion a trimesh to smaller pieces using AABB tree
