feat: 新增AppletCouponType类

jeecg-boot/jeecg-boot-module/jeecgboot-boot-applet/src/main/java/org/jeecg/modules/applet/Final/AppletCouponType.java

@@ -0,0 +1,4 @@
+package org.jeecg.modules.applet.Final;
+
+public class AppletCouponType {
+}