Feature Request: support migration of duckdb-rs

[wsxiaoys]

Given that duckdb-rs provides a very similar interface with rusqlite, it might be good to provides a intermediate trait to support schema migration of duckdb-rs. DuckDB itself is a fork from sqlite thus also supports user_version

Happy to contribute the PR if it's something you're interested to merge

[cljoly]

Thanks for suggesting @wsxiaoys!

I’m interested in discussing this on a PR, but fair warning, I would only merge it if I felt comfortable maintaining the corresponding code (in particular, if it result in a lot of duplicated code, I’m unlikely to want to merge it). If after discussing on the PR, we don’t merge, I’m also happy to link to your fork in the readme of this project.