## 导出yaml支持16进制转换 是否支持16进制输出以提升可读性,如某自定义串口指令0x01FF ``` schema cmd: id: int cmd_a = cmd { id = 0x01FF } ``` 期望生成yaml结果: ``` cmd_a: id: 0x01FF ``` 实际生成yaml结果: ``` cmd_a: id: 511 ``` 如果使用hex()函数会将整形数据转换为字符串"0x01FF",不是想要的结果 <!-- Before asking a question, make sure you have: - Googled your question. - Searched open and closed - [GitHub issues](https://github.com/KusionStack/kcl/issues?utf8=%E2%9C%93&q=is%3Aissue) - Read the documentation: - [Doc](https://kcl-lang.io/) -->