Added updated arduino.h in new clean branch
Added PIO mappings in arduino.h
Renamed copypasted ifdefs in arduino.h for consistency
Included pio.h that already has port defines
Defines changes for DACC, ADC

Made changes to the defines for DACC, ADC pin mappings so they make use
of adc.h and dacc.h and their respecpective tests
Added missing LED-pin and some comments
Added main.h file that the core template uses for the main function
Fixed merge conflict
Merge branch 'core-warning-fix' into integration
+ Changed a function name.
+ Corrected comment.
Corrected comment
Merge remote-tracking branch 'origin/integration' into pwm
Merge branch 'integration' of https://github.com/theolind/mahm3lib.git into integration
Merge remote-tracking branch 'origin/integration' into pwm
Corrected comment and removed a function in pwm.h
Reordered functions in pwm.h
Removed the last warnings
Commented in the pwm.c file and changes the function order.
Merge remote-tracking branch 'origin/pwm' into integration
Removed warnings in bitwise_operations