added SAT collision check
added SAT collision check
Merge branch 'Poly_collision' of https://github.com/ernestaszdanys/freefall into Poly_collision
Some new img
polyPoly working collision
Fixed rectRect function and added intersectionData to polyPoly
Working impulse response
minor fixes
Merge branch 'Poly_collision'

* Poly_collision:
  minor fixes
  Working impulse response
  Fixed rectRect function and added intersectionData to polyPoly
  polyPoly working collision
  Some new img
  added SAT collision check
  added SAT collision check