please include license files in published crates

I'm working on packaging this project for Fedora Linux as a new dependency of zoxide, and the missing license texts in this project are currently blocking this effort. Both the MIT and Apache-2.0 licenses require that redistributed copies of a project's source code contain a copy of the original license text, so this is also technically a problem for crates published and distributed via crates.io as well.

It appears that you have turned off Merge Requests for this project, otherwise I would have filed one, but here's a commit that demonstrates how to fix this issue: https://gitlab.com/decathorpe/color-print/-/commit/20f01ab9d07fabc97e017cf4758cf0b7400f17d8

The license texts are standard versions of Apache-2.0 and MIT license texts, matching the ones from the rust-lang/rust, serde-rs/serde, etc. projects on GitHub. Symbolic links in workspace members are enough to have "cargo package" / "cargo publish" include the files when publishing. Full copies of the files are usually not necessary (unless you run "cargo publish" on an OS that doesn't properly support symlinks, like Windows).