wtclientrpc: add excludeExhaustedSessions option

Add a new `exclude_exhausted_sessions` field to the relevant
wtclient.proto requests. This was chosen instead of "include_exhausted"
so as to not break the API.

lnrpc/wtclientrpc/wtclient.swagger.json

@@ -41,6 +41,13 @@
             "in": "query",
             "required": false,
             "type": "boolean"
+          },
+          {
+            "name": "exclude_exhausted_sessions",
+            "description": "Whether to exclude exhausted sessions in the response info. This option\nis only meaningful if include_sessions is true.",
+            "in": "query",
+            "required": false,
+            "type": "boolean"
           }
         ],
         "tags": [
@@ -112,6 +119,13 @@
             "in": "query",
             "required": false,
             "type": "boolean"
+          },
+          {
+            "name": "exclude_exhausted_sessions",
+            "description": "Whether to exclude exhausted sessions in the response info. This option\nis only meaningful if include_sessions is true.",
+            "in": "query",
+            "required": false,
+            "type": "boolean"
           }
         ],
         "tags": [