#34 gcode algo

closes #34
algorithm that creates a gcode from a path
unittest for the algorithm

pcbdevice/models/Coordinates.py

@@ -5,6 +5,12 @@ class Coordinate:
 	def __init__(self, x = -1, y = -1):
 		self._x = x
 		self._y = y
+
+	def __eq__(self, other):
+		return self.getX() == other.getX() and self.getY() == other.getY()
+
+	def __ne__(self, other):
+		return not self.__eq__(other)
 	
 	def setX(self, x):
 		self._x = x