lnrpc: add Initiator field to ListChannels resposne

lnrpc/rpc.proto

@@ -1010,8 +1010,11 @@ message Channel {
     */
     uint32 csv_delay = 16 [json_name = "csv_delay"];
 
-    /// Whether this channel is advertised to the network or not
+    /// Whether this channel is advertised to the network or not.
     bool private = 17 [json_name = "private"];
+
+    /// True if we were the ones that creted the channel.
+    bool initiator = 18 [json_name = "initiator"];
 }
 
 

lnrpc/rpc.swagger.json

@@ -1401,7 +1401,12 @@
         "private": {
           "type": "boolean",
           "format": "boolean",
-          "title": "/ Whether this channel is advertised to the network or not"
+          "description": "/ Whether this channel is advertised to the network or not."
+        },
+        "initiator": {
+          "type": "boolean",
+          "format": "boolean",
+          "description": "/ True if we were the ones that creted the channel."
         }
       }
     },