routing: add time_pref parameter to queryroutes and sendpayment

lnrpc/routerrpc/router_backend_test.go

@@ -123,8 +123,8 @@ func testQueryRoutes(t *testing.T, useMissionControl bool, useMsat bool,
 	}
 
 	findRoute := func(source, target route.Vertex,
-		amt lnwire.MilliSatoshi, restrictions *routing.RestrictParams,
-		_ record.CustomSet,
+		amt lnwire.MilliSatoshi, _ float64,
+		restrictions *routing.RestrictParams, _ record.CustomSet,
 		routeHints map[route.Vertex][]*channeldb.CachedEdgePolicy,
 		finalExpiry uint16) (*route.Route, error) {