Created ImageFileAdapter for debuging.

Calendar/ImageFileAdapter.py

@@ -0,0 +1,13 @@
+from DisplayAdapter import DisplayAdapter
+
+class ImageFileAdapter (DisplayAdapter):
+    """Saves design to an image file, can be used for debugging"""
+    def __init__ (self, file_path = ""):
+        super(ImageFileAdapter, self).__init__(640, 384)
+        self.file_path = file_path
+
+    def render (self, design):
+        design.save(self.file_path + 'design_exported.png')
+
+    def calibrate (self):
+        pass