Resolve "Add an option to send gNMI Subscribe requests via SBI"

api/go/gosdn/pnd/pnd.pb.go

api/go/gosdn/pnd/pnd_grpc.pb.go

api/openapiv2/gosdn_northbound.swagger.json

api/proto/gosdn/pnd/pnd.proto

cli/adapter/PndAdapter.go

cli/cmd/deviceSubscribe.go

controller/api/device.go

controller/controller.go

controller/eventService/Service.go

controller/interfaces/networkdomain/pnd.go

controller/interfaces/transport/transport.go

controller/mocks/HandleSubscribeResponse.go

controller/mocks/NetworkDomain.go

controller/mocks/Store.go

controller/mocks/Transport.go

controller/northbound/server/pnd.go

controller/nucleus/deviceWatcher.go

controller/nucleus/errors/errors.go

controller/nucleus/gnmi_transport.go

controller/nucleus/principalNetworkDomain.go