Missing poseData return statement

[RozDavid]

Hi @kanakkabara,
First of all thank you very much for the code, I just tried testing on it, and spend some time with the initial debugging
There is a small error, I am not quite clear how it is missing, but there is no return statement in the getPosData function in collision_env.py file at line 207.
Please update the project with it so others could implement it easier
Best wishes!