proto: add creation data filters in ListPaymentsRequest

lnrpc/lightning.proto

@@ -3841,6 +3841,14 @@ message ListPaymentsRequest {
     of payments, as all of them have to be iterated through to be counted.
     */
     bool count_total_payments = 5;
+
+    // If set, returns all invoices with a creation date greater than or euqal
+    // to it. Measured in seconds since the unix epoch.
+    uint64 creation_date_start = 6;
+
+    // If set, returns all invoices with a creation date less than or euqal to
+    // it. Measured in seconds since the unix epoch.
+    uint64 creation_date_end = 7;
 }
 
 message ListPaymentsResponse {