update:enjoy-pay 接入

ExtraPluginCfgs/Android/enjoypay/ChannelEntry.java

@@ -0,0 +1,13 @@
+package com.unity3d.player;
+
+public class ChannelEntry {
+    public static final String CHANNEL = "EnjoyPay";
+
+    public static SDKManager.IChannelSDKAdapter createSDKAdapter() {
+        return null;
+    }
+
+    public static String normalizeSkuList(String msg) {
+        return msg;
+    }
+}