Rename modules

Rename modules with better name and move the arduino code to its own folder

gcodeextractor/utils/plotimg.py

@@ -0,0 +1,9 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+
+def plotPath(img):
+	plt.matshow(img)
+	plt.colorbar()
+	plt.show()
+	return 1