Initial commit of kitty

Summary: The inclusion of kitty solves T4648

Test Plan: lsed various directories with a 2x2 grid of terminals.

Reviewers: Triage Team, DataDrake

Reviewed By: Triage Team, DataDrake

Subscribers: DataDrake, Snuggle, Azphreal, sunnyflunk

Maniphest Tasks: T4648

Differential Revision: https://dev.solus-project.com/D1964