MAGETWO-94245: [2.3] It is not possible to refund to Store Credit when partial payment made with Online method

 - Fixed invalid resolving for credit memo creation
 - Added Customer Balance totals storage

Author: YevSent

app/code/Magento/Sales/Model/Service/CreditmemoService.php

@@ -166,8 +166,8 @@ public function refund(
                 $creditmemo->getOrder(),
                 !$offlineRequested
             );
-            $this->getOrderRepository()->save($order);
             $this->creditmemoRepository->save($creditmemo);
+            $this->getOrderRepository()->save($order);
             $connection->commit();
         } catch (\Exception $e) {
             $connection->rollBack();