Styling

• Added new styling for dotted and labeled grind styles.
• Added swing animation for thumb.
• Update constraints for dotted style now top and bottom reacts in anchors.

Swift Package Manager support

0.4.1

Correct info.plist path

GridStyle

Merge pull request #3 from trafi/feature/style

Feature/style

Swift 5

Merge pull request #1 from trafi/feature/swift5

swift 5