renaming texture

Model improvement to match actual dimentions given by JAXA (nasa#2)

* Scaled the JEM and the entire ISS to the right dimensions;
* Adjusted the JEM coordinate frame to match the conventions;
* Updated the lights that were switched in the JEM as of 31st of July 2020;
* Changed JEM mesh to match the actual dimensions

Add jpm.ply file for projections.

Also reverse the collision.

Fix orientation in US lab.

Fix JPM offset and make room for dock.

Improved handrail meshes and perching arm textures.

Restructured media to allow spawning certain models from world file.

Added a granite lab mesh.

Added a version tag for Astrobee Robot Software Media v0.0.1.