Prototype using register instead of map to share routes between a single service and rest

[joprice]

The rest endpoint and a particular service should not need to share the map of all endpoints. Only the rest nodes need this complete map. Between rest nodes and any given service, only a single distributed data register is required. Then a second data map can be shared across all rest nodes. This reduces the 'scope' of an endpoint and decouples each endpoint from one another, potentially decreasing their propagation time to the rest nodes and increasing their resiliency.