Add SwiftPM support

What's Changed

• Bump rake from 12.3.1 to 12.3.3 by @dependabot in #11
• Add SwiftPM and Github actions support by @master-nevi in #12
• Update readme and changelog by @master-nevi in #13

New Contributors

• @dependabot made their first contribution in #11
• @master-nevi made their first contribution in #12

Full Changelog: 1.1.1...1.2.0