Update GPS.py
Update GPS.py

Added examples for Polygon GeoFence and Point objects. Updated comments and show alternate ways to do the same thing when available like using Point objects rather than latitude and longitude values as arguments.
MyRobotLab/pyrobotlab,MyRobotLab/pyrobotlab,sstocker46/pyrobotlab,MyRobotLab/pyrobotlab,sstocker46/pyrobotlab,MyRobotLab/pyrobotlab,sstocker46/pyrobotlab,mecax/pyrobotlab,mecax/pyrobotlab,MyRobotLab/pyrobotlab