* reset button is now used as power button
* change reset circuitry:
  * stack reset is now connected to interrupt capable GPIO
  * RESET_N signal is now used only for internal reset circuitry
* fix USB ESD protection ciruitry bug
* add inverter for STACK-SER2-RTS signal
* UART3_CTS connected to GND
* add missing tf logo
* change position of different components and labels for easier production