Handling accessibility feature boldTextEnabled

**Is your feature request related to a problem? Please describe.**
Problem is there is no general way to set text bold from one place. I would have to check `AccessibilityInfo.isBoldTextEnabled()` in a hook. And then call that hook everywhere I use `` -component.

**Describe the solution you'd like**
A simple way to provide this info directly or automatically in `` and it would handle the rest. Make the text bold if it needs to based on the accessibility-feature's state.

**Describe alternatives you've considered**
Making a hook and custom text-component that I wrap Paper Text-component inside. But that is not gonna scale very well.

**Additional context**
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首先跟踪 PaperProvider 如何提供 context，以及 Paper 的 Text 组件如何处理文本样式，然后查看 React Native 的 AccessibilityInfo.isBoldTextEnabled() 行为。所要求的结果是提供一种 provider 级别的方式，在启用辅助功能设置时自动应用粗体文本，而无需将每个 Text 组件都包装在自定义 hook 中。没有指定具体的文件或测试，因此请先确定相关的 provider、Text 入口点和现有的辅助功能测试。

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