Compression support for databases

Some databases takes much space that's why having an option for compressing databases would be useful. It also useful for sharing databases with others. In the near future, I predict that the size of databases could grow quite large when support for multi-binary databases and projects comes into play, so it will be useful there too.

The issue names no files, tests, or entry points. First clarify which database formats and compression workflows are required, including storage and sharing expectations; then identify the relevant database handling entry points and define completion criteria before implementation.