Added check for correct baudrate input in uart_init
Added inputparameter check for uart_init and manual test for it
Changed init to return 0 on success 1 on failure also fixed doxygen comments in uart.h
Merge branch 'refactor-uart' into integration
Added struct for the watch dog timer registers and fixed doxygen comments
Removed wdt_reg_t from parameter in functions
Merge branch 'refactor-wdt' into integration
Removed uart_reg_t from inparameters of functions
Merge branch 'refactor-uart' into integration
Merge remote-tracking branch 'origin/integration' into pwm