Update GAP_CLoSR_ArgV$

GAP_CLoSR_ArgV4AverageGapCrossing.py - This version GAP CLoSR algorithm
aggregates the gap crossing layer based on the average values. Works
better when the pixel size is course and the gap crossing distance is
short

GAP_CLoSR_ArgV4StrictGapCrossing.py - Old version of GAP CLoSR algorithm
where the gap crossing layer is aggregated so that the aggregated pixel
needs to be 100% gap crossing