Implementation of the GJK collision detection algorithm MATLAB

# GJK Gilbert-Johnson-Keerthi Collision detection in MATLAB Returns whether two convex shapes are are penetrating or not (true/false). Only works for CONVEX shapes. Plenty of comments so it should be reasonable example code to look through. The algorithm is implemented in GJK.m. MAIN_example.m animates shapes about to collide and uses GJK.m to detect collisions. SampleShapeData.m holes face and vertex data for two sample polyhedra. ## MATLAB before 2014b Please run MAIN_example_compatible.m instead. The way figure properties are changed has been updated.