Quality Control Revision to PCB layout

Changed:
- Updated all 0402 footprints to 0603
- Updated with new 1:1 footprint of 32u4 IC
- Rerouted all traces straight away from IC
- Added trestrict under IC to mitigate gnd plane
- Moved crystal closer to IC
- Updated microUSB footprint for new production part
- Added test point for charge circuit
- Updated version number in bottom copper and schematic
- Added silk for charge and stat LEDs
- Added gnd vias to mitigate orphaned pours