Remove unnecessary 'mkdir' command in the Makefile
Move hardcoded config.h to a template file
Basic UART debug interface
* Use the P10.4 and P10.5 pins
* Send back received text from host
Add function to write on the UART debug interface
Basic logging support
* Configuration flag to enable/disable the code
* Custom sprintf implementation
* Access synchronized with a Mutex
* Automatic EOL characters
* Log function defined to do nothing when disabled
Add function documentation for UART code