Added support for Lock Screen widgets on iOS 16.

Relativity Calendar has been dramatically rewritten.

- Added color customization for iOS app and widgets
- Added support for extra large widgets on iPadOS
- Added a share button so you can let people know what time it really is
- Improved the stability of the app when synchronizing changes between Watch and iOS devices
- The minimum iOS version has been bumped up to 15.0.

- Added support for all complication types on Apple Watch
- Fixed crash on Apple Watch when starting up the first time
- Fixed communication issues with Watch that would cause the date to rapidly change

- Fixed in-app date not refreshing properly.

- Adds widget support on iOS 14
- Changes some of the colors

Fixes issue with the date not changing when the app is in the background for a while.

- You can now pick which month you want to be relative to!
- The selected date is synchronized between your phone and your watch.

- Complications now refresh properly when the day changes
- Added some color to the complications