feat: 增加业务场景示例

[ChangeSuger]

增加一个业务场景示例——基于 LogicFlow 实现的仪器配置文件编辑器。

该项目用于支持仪器配置文件的图形化编辑，在该业务场景下，配置文件的嵌套层级固定为四层，非常适合用类似脑图的编辑方式来支持图形化编辑。

[changeset-bot]

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Latest commit: 91b724f

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[boyongjiong]

为什么会有这个空文件，这个文件是用来干啥的？

[ChangeSuger]

配置项里有个字段叫 filename，如果指定的文件不存在会报错。

PS：该文件夹下的其他 .tsx 文件其实也都是空文件。