with H's help added skeleton Particle & ParticleFilter .h's and .cpp's
added pointer to TransitionModel
Merge branch 'master' of https://github.com/Humhu/RoboStats_Lab1 into ellen_working

Conflicts:
	.gitignore
	include/rspf/Particle.h
	src/CMakeLists.txt
The visualizer compiles; calls a "blank" particle filter. Currently crashes when trying to display the map.