Rewrite @openhps/rest using RemoteService/RemoteNode API

[Maximvdw]

The remote service (https://github.com/OpenHPS/openhps-core/blob/master/src/service/RemoteService.ts) and remote node (https://github.com/OpenHPS/openhps-core/blob/master/src/nodes/RemoteNode.ts) offer a solid building block for remote communication modules.

@openhps/socket, @openhps/mqtt are already migrated to this new API. @openhps/rest is currently still not finished.

Reason for the delay is that @openhps/rest does not require an open connection like sockets or mqtt clients, what makes the addition of a service a bit useless. Maybe the API can be updated to support 'node-only' remote nodes