Incorporate client, group, and user settings into ToGo

[deardooley]

Currently all togo settings are stored in the local storage of the browser. The Metadata API provides one means of persistence, but does not isolate access from other applications or togo instances attempting to use the same namespace. The client, group, and profile settings APIs allow a client application to store data within a namespace unique to the client and user or group. Leveraging these services allows custom configurations to be stored securely by applications without fear of leakage or over exposure.

Push the ToGo config into the client settings service on startup and sync user settings with the profile settings service on auth success.

In theory, this would allow ToGo to enforce a whitelist/blacklist, autoconfig, etc without a backend. It wouldn't be the more secure thing in the world, but it would be enough for quite a few user groups.