Publish Build Tool to crates.io

[boorich]

Is your feature request related to a problem? Please describe. Please describe the problem you are trying to solve.

Describe the solution you'd like Please describe the desired behavior.

Describe alternatives you've considered Please describe alternative solutions or features you have considered.

[LesnyRumcajs]

Perhaps we could make it more generic - contrive a release process, maybe a semi-automated one, for making it available outside of crates.io.

• release in GH,
• release on crates.io,
• release as a Docker image (ghcr.io)