Initial Flamenco support.

Lots to do:

- Doesn't call BAM yet to copy files onto the job storage folder (even
  though you can configure that folder).
- Uses the same project as Attract, so you have to select it in an
  unintuitive location. Also, you can only start Flamenco jobs on a project
  that is Attract-enabled (and not necessarily Flamenco-enabled).

blender_cloud/__init__.py

@@ -79,13 +79,15 @@ def register():
         settings_sync = reload_mod('settings_sync')
         image_sharing = reload_mod('image_sharing')
         attract = reload_mod('attract')
+        flamenco = reload_mod('flamenco')
     else:
         from . import (blender, texture_browser, async_loop, settings_sync, blendfile, home_project,
-                       image_sharing, attract)
+                       image_sharing, attract, flamenco)
 
     async_loop.setup_asyncio_executor()
     async_loop.register()
 
+    flamenco.register()
     texture_browser.register()
     blender.register()
     settings_sync.register()
@@ -111,7 +113,8 @@ def _monkey_patch_requests():
 
 
 def unregister():
-    from . import blender, texture_browser, async_loop, settings_sync, image_sharing, attract
+    from . import (blender, texture_browser, async_loop, settings_sync, image_sharing, attract,
+                   flamenco)
 
     image_sharing.unregister()
     attract.unregister()
@@ -119,3 +122,4 @@ def unregister():
     blender.unregister()
     texture_browser.unregister()
     async_loop.unregister()
+    flamenco.unregister()