add ijk to gcode parser

cnc/enums.py

@@ -0,0 +1,18 @@
+from enum import Enum
+
+""" This module describes system wide enums.
+"""
+
+class Plane(Enum):
+    """ Enum for choosing plane for circular interpolation.
+    """
+    PLANE_XY = 1
+    PLANE_ZX = 2
+    PLANE_YZ = 3
+
+
+class RotationDirection(Enum):
+    """ Enum for choosing rotation direction.
+    """
+    CW = 1
+    CCW = 2