活动：寻宝骑兵活动添加推送任务

shared/domain/activityField/treasureHuntField.ts

@@ -180,6 +180,10 @@ export class TreasureHuntTaskData {
         }
     }
 
+    public findItemByTaskType(type: number) {
+        return this.list.filter(obj => { return obj && obj.taskType === type });
+    }
+
     public initData(data: any) {
         this.name = data.name;
         this.index = data.index;