[management] network map from nmap data type (#6919)

Signed-off-by: Dmitri Dolguikh <dmitri.external@netbird.io>
Co-authored-by: Dmitri Dolguikh <dmitri.external@netbird.io>

shared/management/networkmap/nmdata/network_router.go

@@ -0,0 +1,10 @@
+package nmdata
+
+// NetworkRouter is the slim twin of routers/types.NetworkRouter.
+type NetworkRouter struct {
+	PublicID   string
+	PeerGroups []string
+	Masquerade bool
+	Metric     int
+	Enabled    bool
+}