H+ Case Remix

I modified the H+ case because the 503759 batteries I ordered did not fit in the original H+ case, the openings for the USB ports were not aligning/big enough to connect to my cables, and I wanted to use an ethernet cable for the aux tracker.


Changes:
- increased clearance for battery in length and width
- made openings for USB ports larger
- added I/O symbols near switch opening
- added hole and slot for ethernet cable (You can fill this with silicone if you want. Update: KwikWeld is working as a better option for strain relief.)
- scaled lid to what worked best for my printer/settings (the sides still need a little filing due to overshoot on some corners)
- I oriented the BNO085 to shorten the SCL/SDA wires and used an offset value of 180 degrees when flashing
- a battery pigtail fit nicely between the tray and case, eliminating the need to cut the battery wires and risk shorting the battery