Retract/Cutoff/Stop stop length

This parameter is used for Retract, Stop, and Cutoff operations.

Retract operation:
	Contour Wire path Stop length Normal contour start/end position Inserted end position Run-out
Stop operation:
	Contour Wire path Stop length Contour start/end position Inserted stop positions
Cutoff operation (CW):
	Contour Wire path Stop length Normal contour start/end position Inserted end position Run-out
Cutoff operation (CCW):
	Contour Wire path Stop length Normal contour start/end position Inserted end position Run-out