Source code filename collisions on case-insensitive filesystems

[itechbear]

Describe the bug
Several files of this repository have same filenames ignoring cases. When cloned on Mac OS / Windows, it would cause filename collision problems. Known collisions are:

• spot/mini_ros/stl/OpenQuadruped/BACK.stl and spot/mini_ros/stl/OpenQuadruped/Back.stl
• spot/mini_ros/stl/OpenQuadruped/FRONT.stl and spot/mini_ros/stl/OpenQuadruped/Front.stl
• spot/spotmicro/util/pybullet_data/assets/urdf/stl/OpenQuadruped/BACK.stl and spot/spotmicro/util/pybullet_data/assets/urdf/stl/OpenQuadruped/Back.stl
• spot/spotmicro/util/pybullet_data/assets/urdf/stl/OpenQuadruped/FRONT.stl and spot/spotmicro/util/pybullet_data/assets/urdf/stl/OpenQuadruped/Front.stl

To Reproduce
run git clone on Mac OS / Windows

Expected behavior
Some of the files should be renamed to avoid collisions.

Screenshots

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Additional context