Choose and order new computer

[mortenfyhn]

Adafruit feathers seem nice because they have the charging circuit integrated:

• Feather 328P: same mcu as the old arduino

• Feather M0: more power and a bit more proto space

• [x] Decide which to order --> M0 lol
• [x] Order comp
• [x] Order battery

[mortenfyhn]

Done!