feat: add getPlayerInfo

新增一个UserCache快捷获取接口

lib/GMLIB_API-JS.js

@@ -888,6 +888,10 @@ class UserCache {
         return result == "" ? null : result;
     }
 
+    static getPlayerInfo(playerIdentifier) {
+        return GMLIB_API.getAllPlayerInfo().find(Info => Object.keys(Info).some(InfoKey => Info[InfoKey] === playerIdentifier));
+    }
+
     static getAllPlayerInfo() {
         return GMLIB_API.getAllPlayerInfo();
     }