动态表格配置

[helloqian12138]

Is your feature request related to a problem? Please describe.
表格生成器支持动态可视化配置表格的列
比如，datasource 下发的数组 包含： "a": "hello,world"，那么就新增 一个文本组件 展示 该列。
用可视化的方式来配置，而不是通过动态修改表格的schema 中的 columns

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