如何覆盖Klipper 的G-code 指令

```
######################################################################
# Override M117 command with rawparams
######################################################################

# The macro below will override the default M117 command to echo the message.
#
# It uses the rawparams pseudo-variable that contains the full unparsed
# parameters that was passed to the M117 command.
#
# As this can include comments, we are trimming the text when a `;` or `#` is
# found, and escaping any existing `"`

[gcode_macro M117]
rename_existing: M117.1
gcode:
  {% if rawparams %}
    {% set escaped_msg = rawparams.split(';', 1)[0].split('\x23', 1)[0]|replace('"', '\\"') %}
    SET_DISPLAY_TEXT MSG="{escaped_msg}"
    RESPOND TYPE=command MSG="{escaped_msg}"
  {% else %}
    SET_DISPLAY_TEXT
  {% endif %}
```

# 参考文档
[rawpars伪变量访问正在运行的宏的完整未解析参数](https://www.klipper3d.org/zh/Command_Templates.html#rawparams)
[Replace M109/M190 With TEMPERATURE_WAIT](https://ellis3dp.com/Print-Tuning-Guide/articles/useful_macros/replace_m109_m190_with_temp_wait.html)