fix: 微信登录补充保存username和role

node_modules/pngjs/lib/png-sync.js

@@ -0,0 +1,16 @@
+'use strict';
+
+
+var parse = require('./parser-sync');
+var pack = require('./packer-sync');
+
+
+exports.read = function(buffer, options) {
+
+  return parse(buffer, options || {});
+};
+
+exports.write = function(png, options) {
+
+  return pack(png, options);
+};