Updateed "fwd_rev" fuction so that program does not freeze when function runs.
Updateed "fwd_rev" fuction so that program does not freeze when function runs.
Re-write / Separation of stepper fwd_rev and speed control

Function fwd_rev now only controls the: Direction, Speed, and MinSteps.
Function btn_presstime now controls the speed of the stepper.
Merge remote-tracking branch 'refs/remotes/Agfa/Control_Modification'