Sets the alignment of the PWM.
PWM is left aligned, meaning it starts high.
PWM is right aligned, meaning it starts low.
PWM is centered aligned, terminal count only occurs on underflow.
PWM is asymmetrically aligned, terminal count occurs on overflow and underflow.
PWM is asymmetrically aligned, line pulse period is equal to CC1-CC0.
PWM is asymmetrically aligned, TBD.