Update emoji to include later Unicode versions, and enable switching between them

[caffeinewriter]

Emoji have come a long way since I started this project! Many emoji have been added. We're up to Unicode Emoji v11.0 as of authoring this issue. To keep up with the times, the new emoji should be added, as well as an option to limit the maximum version, for using emoji ipsum with devices and systems that may have not received the latest emoji updates.