Please include a LICENSE file in the published crate

[eclipseo]

It would help distro integration.

Thanks.

[bollwyvl]

This is presently blocking some work downstream: https://github.com/conda-forge/texlab-feedstock/pull/10

Happy to submit a PR if @cbreeden would like to propose a copyright line

[schwa423]

The Fuchsia project has scripts which verify that vendored crates has proper licenses. fxhash is a dependency of wgpu, and is blocking us from using that crate. It would be very appreciated to include a LICENSE file in the published crate.

Edit: here is a link to our licensing policy: https://fuchsia.dev/fuchsia-src/contribute/governance/policy/open-source-licensing-policies?hl=en#licenses_and_tracking