Introducing Cloud extension

We use a Pillar extension to register Blender Cloud specific endpoints.

runserver.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+
+from pillar import PillarServer
+from attract import AttractExtension
+from flamenco import FlamencoExtension
+from cloud import CloudExtension
+
+attract = AttractExtension()
+flamenco = FlamencoExtension()
+cloud = CloudExtension()
+
+app = PillarServer('.')
+app.load_extension(attract, '/attract')
+app.load_extension(flamenco, '/flamenco')
+app.load_extension(cloud, None)
+app.process_extensions()
+
+if __name__ == '__main__':
+    app.run('::0', 5001, debug=True)