daemon: revamp to align gre tunnels for distributed to align with changes, also moved gre tunnels for wired links to occur directly when linking, allowing runtime distributed functionality, also updates to phyical node to leverage a core node, but avoid using namespacing

daemon/core/emulator/session.py

@@ -321,6 +321,9 @@ class Session:
         # track link
         core_link = CoreLink(node1, iface1, node2, iface2, ptp)
         self.link_manager.add(core_link)
+        # setup link for gre tunnels if needed
+        if ptp.up:
+            self.distributed.create_gre_tunnels(core_link)
         return iface1, iface2
 
     def delete_link(