Added bullet physics
Merge branch 'master' of https://github.com/mrbichel/cruxTracker

# By Pdaa (2) and Johan Bichel Lindegaard (1)
# Via Pdaa
* 'master' of https://github.com/mrbichel/cruxTracker:
  Added Blobtracking
  Added Blobtracking
  Create README.md

Conflicts:
	src/testApp.cpp
	src/testApp.h
Added physics library