8BitMixtape-NEO case

this is an effort to help the great 8bitmixtape project by providing an enclosing case to its PCBA.

The project's simensions were taken with calipers because the 8BitMixtape project does not have a published image with mechanical dimensions.

the project:
https://wiki.8bitmixtape.cc/#/2_1-8Bit-Mixtape-NEO

git:
https://github.com/8BitMixtape/8Bit-Mixtape-NEO/blob/master/Code/_061_8NeoPixelSequencer_dusjagrMod/_061_8NeoPixelSequencer_dusjagrMod.ino.wav