[Feature] Support mtp ep in fd (#3340)

* [Optimize] Add metrics for analysing perf

* Fix bug in mtp

fastdeploy/splitwise/splitwise_connector.py

@@ -503,6 +503,7 @@ class SplitwiseConnector:
                         index=task["outputs"]["index"],
                         send_idx=0,
                         token_ids=task["outputs"]["token_ids"],
+                        draft_token_ids=task["outputs"]["draft_token_ids"],
                     ),
                     finished=True,
                 )