Support Turso and libsql

[briancbarrow]

libSQL is a fork of SQLite that is used for Turso databases. I was trying to set up the session manager to use with my Turso DB but was running into issues. I think I narrowed it down to libsql expecting a ? as a variable placeholder instead of $1. I cloned the repo and was able to get it working by just replacing those.

I'll open up a PR with those added.

[briancbarrow]

@alexedwards do you think this is something we can add? I have the PR open for it already.

[JayJamieson]

I am in the same situation looking for a libsql based store so I can work with turso db.

[alexedwards]

Please see comment #193 (comment)