Include license attribution in release binaries

[repi]

As this project distributes binary executables in the GitHub releases and as now have our cargo-about tool we should use it to include license attribution for all dependencies used in the texture synthesis cli application, for every release.

Would be great to have a sub-command that prints out the licenses, something like texture-synthesis-cli about-licenses that shows a simple list of crates + license, and then maybe a texture-synthesis-cli about-licenses-full that shows the full license text for every unique license as well?

Should have a standard naming, output, and CI set up for this that we (and others) can use in all of our binary tools