Xbox One Controller, 21700 Battery Version

I got a request to make a alternate version of my 18650 Xbox One battery pack that uses 21700s instead. So there you go.

This is untested, as I don't actually have a 21700 to try it in, but hopefully should work with the dimensions I was given.

EDIT, 01/11/2020: It got pointed out that I uploaded the wrong files. Fixed now. Also replaced the battery holder with a longer one