Checkbox.Item: Make the underlying TouchableRipple more configurable

**Is your feature request related to a problem? Please describe.**
I've applied border radius to Checkbox.Item, and it seems to work as expected. However, when the item is `pressedIn`, the underlying touchable ripple doesn't respect the item's border radius.

**Describe the solution you'd like**
Expose an API to tweak the TouchableRipple through rippleStyle or containerStyle.

**Describe alternatives you've considered**
I've considered not using the Checkbox.Item and manually implementing the component with desired level of configuration. But it's a much bigger lift.

**Additional context**

从 Checkbox.Item 开始，检查它如何创建和配置底层的 TouchableRipple。定义所请求的 rippleStyle 或 containerStyle API，使项目的 border radius 在按下时得到遵循，然后在可用的情况下，使用相关的组件测试或示例验证行为。

由索引模型根据 Issue 内容生成。