fix(marker): extend marker support to dynamips and cloud nodes

Dynamips needed its own NIO base class extended with a `_markers`
attribute and `markers` property (mirroring the existing `filters`
pattern), plus marker propagation from the controller-supplied NIO
settings through NIOUDP.create/update to the common destination
NIO that base_node._ubridge_apply_markers reads.

Cloud simply needed the missing _ubridge_apply_markers calls after
_ubridge_apply_filters in its two ubridge connection methods, same
pattern as the earlier docker fix.

Both types are now added back to _MARKER_CAPABLE_TYPES.

gns3server/compute/builtin/nodes/cloud.py

@@ -312,6 +312,7 @@ class Cloud(BaseNode):
         )
 
         await self._ubridge_apply_filters(bridge_name, nio.filters)
+        await self._ubridge_apply_markers(bridge_name, nio)
         if port_info["type"] in ("ethernet", "tap"):
 
             if not self.manager.has_privileged_access(self.ubridge_path):
@@ -452,6 +453,7 @@ class Cloud(BaseNode):
         bridge_name = f"{self._id}-{port_number}"
         if self._ubridge_hypervisor and self._ubridge_hypervisor.is_running():
             await self._ubridge_apply_filters(bridge_name, nio.filters)
+            await self._ubridge_apply_markers(bridge_name, nio)
 
     async def _delete_ubridge_connection(self, port_number):
         """