SpotMicroESP32 (using 623ZZ bearings)

Software:
https://github.com/projunk/SpotMicro


Following minor changes were made compared to the original.

- Use of M3 screws/nuts only (except servo horns)
- Use of 623ZZ bearings (8x)
- Fixed nuthole size in Wrist_Counterpart (nuts were slipping due to too large size of nuthole)
- Fixed hole sizes for all tiny servo horn screws (M1.7*6)


Changes 21 September 2020:
- added Circuitboard_Mount_10A.stl (2 x Buckconverter 3A, 4x Buckconverter 10A, 1x PCA9685, 1 x PCB with esp32 devboard)
- added Front_Cover_Optimized.stl. This version is 15 mm longer than the original, so that it has more space to hold the electronics)
- added Cameramount.stl (camera part replaced by pcb holder for the electronics)


Changes 26 September 2020:
- added alternative Circuitboard_Mount_20A.stl (2 x Buckconverter 3A, 2x Buckconverter 20A, 1x PCA9685, 1 x PCB with esp32 devboard)
- added alternative version Chassis_Side.stl. The vertical position of the electronics plate can be control