Initial commit of Kuka robot based on Model KR210 step file.
The received step file was titled "KR150_180_210_240-2AV400", so these meshes might represent a family of robots, but for now specifically things are set up for the KR210.
There are STL's and dae's in the visual folder because the stl's are oriented "properly" with all z axes going in the world z axis direction, whereas the dae's are rotated 90 degrees. The dae's have color so those are included in the macro.xacro and the urdf with a pi/2 rotation to fix links 2-5 (links 0, 1, and 6 are ok).