Move planned features to separate file

README

@@ -10,17 +10,3 @@ Currently implemented:
 - Geometry math (2D/3D/4D vectors, matrices, quaternions)
 - Unit tests
 
-Future plans:
-- More geometry stuff (boxes, rays, planes, lines, triangles, etc.)
-- Thread support (thread, mutex, cv, atomics, etc.)
-- Image loading/processing/saving support
-- Polygon rasterization (possibly canvas)
-- UTF8 string support (BMP handling)
-- Font rendering
-- GUI (Windows GUI oriented, X11)
-- Deflate/Inflate implementation
-- Audio loading/processing/saving support
-- FFT/IFFT (with basic complex numbers)
-- Basic 2D/3D physics engine (possibly as a separate library?)
-- Configuration support (INI, JSON, Registry)
-- More unit tests