Adds tvOS support

Adds support for macOS

Fixes a bug where some layouts would not size correctly

Introduces UIKitView to allow for easier and more consistent integrat…

…ion with simple UIKit views

Renames ScrollView > ScrollableView to avoid name clash with SwiftUI

Refactored LayoutReader to fix layout and sizing issues. It should no…

…w be far more reliable

Deprecated frame(in:) since size(in:) is far more practical

Updates README

Updates README