fix: 微信登录补充保存username和role

node_modules/licia/defined.js

@@ -0,0 +1,8 @@
+var isUndef = require('./isUndef');
+exports = function() {
+    for (var i = 0, len = arguments.length; i < len; i++) {
+        if (!isUndef(arguments[i])) return arguments[i];
+    }
+};
+
+module.exports = exports;