lnrpc: modify gettransaction parameters

This commit adds index_offset and max_transactions to the list
of parameters passed during gettransactions call. index_offset
specify transactions to skip and max_transactions the total
transactions returned

lnrpc/lightning.proto

@@ -757,6 +757,18 @@ message GetTransactionsRequest {
 
     // An optional filter to only include transactions relevant to an account.
     string account = 3;
+
+    /*
+    The index of a transaction that will be used in a query to determine which
+    transaction should be returned in the response.
+    */
+    uint32 index_offset = 4;
+
+    /*
+    The maximal number of transactions returned in the response to this query.
+    This value should be set to 0 to return all transactions.
+    */
+    uint32 max_transactions = 5;
 }
 
 message TransactionDetails {

lnrpc/lightning.swagger.json

@@ -2591,6 +2591,22 @@
             "in": "query",
             "required": false,
             "type": "string"
+          },
+          {
+            "name": "index_offset",
+            "description": "The index of a transaction that will be used in a query to determine which\ntransaction should be returned in the response.",
+            "in": "query",
+            "required": false,
+            "type": "integer",
+            "format": "int64"
+          },
+          {
+            "name": "max_transactions",
+            "description": "The maximal number of transactions returned in the response to this query.\nThis value should be set to 0 to return all transactions.",
+            "in": "query",
+            "required": false,
+            "type": "integer",
+            "format": "int64"
           }
         ],
         "tags": [
@@ -2774,6 +2790,22 @@
             "in": "query",
             "required": false,
             "type": "string"
+          },
+          {
+            "name": "index_offset",
+            "description": "The index of a transaction that will be used in a query to determine which\ntransaction should be returned in the response.",
+            "in": "query",
+            "required": false,
+            "type": "integer",
+            "format": "int64"
+          },
+          {
+            "name": "max_transactions",
+            "description": "The maximal number of transactions returned in the response to this query.\nThis value should be set to 0 to return all transactions.",
+            "in": "query",
+            "required": false,
+            "type": "integer",
+            "format": "int64"
           }
         ],
         "tags": [