feature: add api to view/modify providers and implement restart
feature: add api to view/modify providers and implement restart

sbender9/signalk-server-node,webmasterkai/signalk-server-node,SignalK/signalk-server-node,webmasterkai/signalk-server-node,SignalK/signalk-server-node,sbender9/signalk-server-node,sbender9/signalk-server-node,webmasterkai/signalk-server-node,SignalK/signalk-server-node,SignalK/signalk-server-node