Allow `ReactNode` as a `label` of `RadioButton`

[Haschikeks]

Hey,

I would be interested to see if the label prop of the RadioButton could accept a ReactNode instead of a string.

An example of what I want to achieve is shown in the screenshot, where I have some additional text with a different styling. Or even a text input. This is from a webapp.
This would also allow people to use any themed Text components they might have, without having to override the labelStyle prop.

I reckon, the code would look something like

const labelComp = (typeof label === "string" || typeof label === "number") ? <Text style={[margin, labelStyle]}>{label}</Text> : label;

This should keep it backwards compatible.

The docs then should probably state, that labelStyle is ignored if the label Prop is not a string.

A similar thing could be done for the descriptionprop.

I would be willing to contribute a PR for this.

[ThakurBallary]

@Haschikeks Interesting please send a PR.