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/dynamips/__init__.py

@@ -376,6 +376,7 @@ class Dynamips(BaseManager):
                 raise DynamipsError(f"Could not create an UDP connection to {rhost}:{rport}: {e}")
             nio = NIOUDP(node, lport, rhost, rport)
             nio.filters = nio_settings.get("filters", {})
+            nio.markers = nio_settings.get("markers", {})
             nio.suspend = nio_settings.get("suspend", False)
         elif nio_settings["type"] == "nio_generic_ethernet":
             ethernet_device = nio_settings["ethernet_device"]