Add document about how to convert obj file to ply file.
Add static collision mesh to the arm
Remove unused header, update documentation.
Revise document about how to convert obj to ply using Blender
Merge branch 'feature/collisionMesh-arm' into 'master'

Add static collision mesh to the arm

+1: Paul Novotny, Walter Schoen, kelliher

Merged-on: https://www.assembla.com/code/OpenSurgSim/git/merge_requests/737203