建议授权支持用户多选

[hardy1970]

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当前版本为用户授权只能单选，如果用户多的话 很麻烦
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[echo-layker]

附议

[justyida]

一个一个授权的我快疯了，20年的需求还没实现，帅哥们加把油啊

[nobodyiam]

I think the better solution is to support assigning permissions to roles directly, see #2178