Log Message:
New package for gitui. From Kimihiro Nonaka in PR pkg/56784.

Blazing fast terminal client for git written in Rust.

Features:
* Fast and intuitive keyboard only control
* Context based help (no need to memorize tons of hot-keys)
* Inspect, commit, and amend changes (incl. hooks: commit-msg/post-commit)
* Stage, unstage, revert and reset files and hunks
* Stashing (save, apply, drop, and inspect)
* Browse commit log, diff committed changes
* Scalable terminal UI layout
* Async input polling
* Async git API for fluid control