SQLite implementations

[johnbcodes]

I created SQLite forks/implementations of postgres-es here and the cqrs-demo here. Fairly trivial thanks to @davegarred and SQLx.

I also explored using sea-orm for Querys. This lead to a question/discussion regarding error handling.

Thanks to @serverlesstechnology and @davegarred for such useful and well-document libraries!

[davegarred]

Thanks for the work @johnbcodes! I'll try to take a closer look next week (new job so time is a little tight right now).