In the spirit of #9509 we are changing the visibility of the bits commands
to align with the way they are correctly done in the bytes commands...

Thanks to @sholderbach for pointing out this nice improvement
to me in my PR earlier in the day...

mod and;
mod bits_;
mod not;
mod or;
mod rotate_left;
mod rotate_right;
mod shift_left;
mod shift_right;
mod xor;