MainBoard: - change pinout of ESP and STM - change pinout of UIboard connector - add support for ESP debugging over JTAG through STM - add USB cable insertion detection - add 1k5 pull resistor to USB D+ - add USB_C - add MPU-6050 - add step-down for intelligent leds - add ESP reset button - add test points - replace expander connector by pinheads - connect I2C display - connect intelligent servos to STM, instead of ESP - fix AMS1117 4th pin connection - move some connectors - renumber schematic - reorder sheets

Fix PMA buffer overrun

Add working cdc_uart_tunnel.cpp

MainBoardBRD: routing power - +5V, +3V3_ESP, +3V3_STM, DRV8833 - change DRC - `robotikabrno-4-layers.dru`

MainBoardBRD: routing power - VCC, 5V, servo, DRV8833

Use ByteFifo in tunnel USART, add loopback

MainBoard: Invalidate parts.xlsx

MainBoard: Add filter capacitors to buttons

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