add CIP0149 tag (#1035)

Author: Ryun1

CIP-0010/registry.json

@@ -111,6 +111,10 @@
     "transaction_metadatum_label": 1989,
     "description": "cardahub.io services metadata"
   },
+  {
+    "transaction_metadatum_label": 3692,
+    "description": "CIP-0149 - Optional DRep compensation"
+  },
   {
     "transaction_metadatum_label": 6770,
     "description": "fortunes.coconutpool.com fortune teller"