Resources-composable should have a ColorDesc.localized() function

[dalewking]

StringDesc has a localized function, but for some reason ColorDesc does not.

[dalewking]

This is what I implemented in our code:

@Composable
fun ColorDesc.localized(): Color = when (this) {
    is ColorDescResource -> colorResource(resource)
    is ColorDescSingle -> Color(color.argb)
    is ColorDescThemed -> when {
        isSystemInDarkTheme() -> Color(darkColor.argb)
        else -> Color(lightColor.argb)
    }
    else -> throw NotImplementedError()
}