RoboticsBrno / RB3204-RBCX - History

MainBoard: Change power circuit to make ON button connected to GND

MainBoardBRD: update DRC and reroute DRV8833 driver power supply

- update DRC and save it as `robotikabrno-4-layers.dru`
- optimize values according manufactors 4 layers stack capabilities

MainBoard: 4 layers, motors connector, DRV8833, libraries

- set 4 layers stack + change DRC setting about same signals, the rest is still same (possible place
for improvements due to 4 layers stack and https://jlcpcb.com/capabilities/Capabilities)
- motors connectors - remove terminal blocks, replace pinheads with JST-PH6 (2mm x 6 pins)
- DRV8833
- improve `DRV8833.lbr` library - fix thermal GND pad under the package
- reroute on DPS and add thermal VIAs according http://www.ti.com/lit/an/slma004b/slma004b.pdf
- reroute `Q1` and `Q2` + main power terminal block
- libraries - add `jst-ph.lbr` and document `LIBRARIES.md` with source info about used libraries
- please extend the `LIBRARIES.md` in the feature