Changes made for Pathfinder 5226 controllers.

Some folding machines have the option of taking off the shear and putting on a hemmer instead(ASC). To quickly get the functionality for the hemmer a lot of the shear feature was reused. Since you need the shear to be active to get the shear machine step to use for the hemmer. That means shear I/O becomes active. The problem was there was an axis conflict where the clamp could not move up if shear was not on home limit. The fix was to make sure this check doesn't happen if the hemmer is active.