fix: 微信登录补充保存username和role

node_modules/licia/btoa.js

@@ -0,0 +1,23 @@
+var root = require('./root');
+var isNode = require('./isNode');
+var base64 = require('./base64');
+var map = require('./map');
+if (isNode) {
+    exports = function(str) {
+        return new Buffer(str, 'binary').toString('base64');
+    };
+} else {
+    if (root.btoa && !false) {
+        exports = root.btoa;
+    } else {
+        exports = function(str) {
+            return base64.encode(
+                map(str, function(c) {
+                    return c.charCodeAt(0);
+                })
+            );
+        };
+    }
+}
+
+module.exports = exports;