[adapters] 增加小游戏适配部分源码

adapters/common/engine/globalAdapter/index.js

@@ -0,0 +1,9 @@
+const adapter = window.__globalAdapter;
+
+Object.assign(adapter, {
+    adaptSys: require('./BaseSystemInfo'),
+
+    adaptView: require('./View'),
+
+    adaptContainerStrategy: require('./ContainerStrategy'),
+});