Some prop types of Saturation are not exported

I tried to import Saturation in my React-Typescript project and use it like below:

```typescriptscript
import { Saturation } from 'react-color/lib/components/common';

const Component: React.FC = () => {
return (

);
};
```

VSCode suggests I missed Color prop and hsl and hsv were not needed. I tried to include Color and remove hsl and hsv. It didn't work. And I know the code above was correct because it worked and I checked source code of Saturation as well.

Start at the Saturation component and its import entry point, react-color/lib/components/common, then inspect how its prop types are declared and exported. Confirm that the documented onChange, hsl, and hsv usage type-checks without requiring an unrelated Color prop.

Written by the indexing model from the issue text.