* Enable hardware serial ports on LPC1768
* Fix compilation errors with other HALs
* FIx order of includes in LPC1768 HAL main.cpp
* Add support for RX_BUFFER_SIZE and TX_BUFFER_SIZE options in Configuration_adv.h
Includes:
*firmware version / branch / date.
*extruder count
*board information (name, serial details, power supply type)
*thermistors (names, min/max temperatures)
*printer statistics (PRINTCOUNTER details)
Thanks to @thinkyhead for contributions.