feat(Link): 添加 Rel 属性参数

[densen2014]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

例如下面这些情况. 因为组件内部覆盖了 rel="stylesheet" 所以外部写就没用了
type="image/x-icon" 没问题, 因为组件内部没有覆盖它

    <link rel="manifest" href="_content/xxx.Shared/manifest.json" asp-append-version="true" />
    <link rel="shortcut icon" href="_content/xxx.Shared/favicon.jpg" asp-append-version="true">
    <link rel="icon" type="image/x-icon" href="_content/xxx.Shared/favicon.jpg" asp-append-version="true">

Describe the solution you'd like

添加 Rel 属性参数, 应用范围更加广泛

Additional context

No response

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