Merge pull request freshOS#155 from edulpn/layoutAnchorOperators

Create Int and CGFloat variants for SteviaLayoutAnchor operators

Updates for Xcode 12 (swift-tools-version:5.3)

Fixes accuracy causing tests to fail

Merge pull request freshOS#140 from freshOS/function_builders

Function builders, CGFloat, api clean, UIStackViews

Removes broken playground

Builds with Xcode 11.2.1 & Xcode 5.1.2

Bumps to 4.7.2

Bumps to 4.7.1

Merge pull request freshOS#127 from freshOS/leadingTrailingApi

Right-to-left language support