Add global static delta time
Add ContactManifold
Fix Mesh draw, normals
Fix NPE
Add Plane ctor from 3 points
Add getters and closestPoint
Fix error in eclipse
Add test Mesh
Add getters, closestPoint and inside methods
Fix skin, add render method
Move methods to header file
Fixes, additions, stuff...
Fix initial window focus
Code cleanup
Disable CCD
Make render funciton const
Add render method to Triangle, Edge
Add template to Polygon class
Add template to BoundingBox class
Circle code cleanup