增加MMoE模型试验

ad-engine-service/src/main/java/com/tzld/piaoquan/ad/engine/service/score/impl/RankServiceImpl.java

@@ -130,6 +130,8 @@ public class RankServiceImpl implements RankService {
                 return ServiceBeanFactory.getBean(RankStrategyBy849.class);
             case "851":
                 return ServiceBeanFactory.getBean(RankStrategyBy851.class);
+            case "852":
+                return ServiceBeanFactory.getBean(RankStrategyBy852.class);
             case "865":
                 return ServiceBeanFactory.getBean(RankStrategyBy865.class);
             default: