lnrpc: add commit fees to WaitingPendingClose

lnrpc/rpc.proto

@@ -2028,6 +2028,24 @@ message PendingChannelsResponse {
 
         /// Hash of the remote pending version of the commitment tx.
         string remote_pending_txid = 3;
+
+        /*
+        The amount in satoshis calculated to be paid in fees for the local
+        commitment.
+        */
+        uint64 local_commit_fee_sat = 4;
+
+        /*
+        The amount in satoshis calculated to be paid in fees for the remote
+        commitment.
+        */
+        uint64 remote_commit_fee_sat = 5;
+
+        /*
+        The amount in satoshis calculated to be paid in fees for the remote
+        pending commitment.
+        */
+        uint64 remote_pending_commit_fee_sat = 6;
     }
 
     message ClosedChannel {

lnrpc/rpc.swagger.json

@@ -1617,6 +1617,21 @@
         "remote_pending_txid": {
           "type": "string",
           "description": "/ Hash of the remote pending version of the commitment tx."
+        },
+        "local_commit_fee_sat": {
+          "type": "string",
+          "format": "uint64",
+          "description": "The amount in satoshis calculated to be paid in fees for the local\ncommitment."
+        },
+        "remote_commit_fee_sat": {
+          "type": "string",
+          "format": "uint64",
+          "description": "The amount in satoshis calculated to be paid in fees for the remote\ncommitment."
+        },
+        "remote_pending_commit_fee_sat": {
+          "type": "string",
+          "format": "uint64",
+          "description": "The amount in satoshis calculated to be paid in fees for the remote\npending commitment."
         }
       }
     },