Service bootstrap over MQTT

[linux4life798]

In order to simplify the service startup and synchronization process, there should be a rest call that allows services to receive the initial device list / configs as normal device update events.

It is rediculiois to expect each new framework library to implement such a complex startup and synchronization routine, when it is such a simple operation within the rest server.
This fix would hopefully blaze the way for simpler framework libraries in other languages.

Currently, the Golang framework handles this fusion of live mqtt update events and initial configs over rest, and then fakes device add events to the library user.