Add Types to support styles

[jacquesdev]

While we are here shall we add a flow types for types_first setting that is coming. Not sure if View has a flow type definition so try;

type ViewProps= typeof View

type ContainerProps = {
   color: string,
   ...ViewProps,
}

export const Container: ContainerProps ...

I'm not sure if would need to do ComponentType<ContainerProps>. Or could flag in that types first stylesheet ticket to update the generator then?

Originally posted by @ChristieRobson in #15 (comment)