增强命令参数输出的颜色显示，添加变量自动补全提示功能

components/system/source/shell/sh.c

@@ -3131,7 +3131,7 @@ SH_CMD_FN(_cmd_tree)
     // 打印收到的参数
     for (int i = 0; i < argc; i++)
     {
-        sh_echo(sh_hdl, "%s%s%s", i ? "" : "'", argv[i], i + 1 < argc ? " " : "'\r\n");
+        sh_echo(sh_hdl, "%s" _COLOR_Y "%s" _COLOR_END "%s", i ? "" : "'", argv[i], i + 1 < argc ? " " : "'\r\n");
     }
 
     // 打印命令树