Make xmodule fit the typical python installation setup

common/lib/xmodule/xmodule/schematic_module.py

@@ -0,0 +1,10 @@
+import json
+
+from x_module import XModule, XModuleDescriptor
+
+class ModuleDescriptor(XModuleDescriptor):
+    pass
+
+class Module(XModule):
+    def get_html(self):
+        return '<input type="hidden" class="schematic" name="{item_id}" height="480" width="640">'.format(item_id=self.item_id)