Add support for build in Shapes

[shial4]

Please, Add shape support

func haloView() -> some View {
        #if !SKIP
        Circle()
            .foregroundColor(contentColor ?? Color.clear)
            .frame(width: 8, height: 8)
            .offset(y: 4)
        #else
        EmptyView()
        #endif
    }

[marcprux]

Thanks for the suggestion. I've moved this over to the SkipUI project issues at skiptools/skip-ui#5

[aabewhite]

Implemented in skip-ui 0.3.11

[shial4]

thanks! for so quickly addressing the matter :)