Created a test for PWM.
Merge branch 'integration' of https://github.com/theolind/mahm3lib.git into integration
Merge remote-tracking branch 'origin/integration' into pwm
Merge remote-tracking branch 'origin/pwm' into integration
+ Added bitwise_operation.h and .c
+ Added test_pwm.h and .c
Added more tests to PWM.
Removed errors
Merge remote-tracking branch 'origin/pwm' into integration
Merge branch 'integration' into spi