Create "driver "packages for various databases

Having all of the connection logic for every supported database type is going to be an absolute nightmare, rather than shoving it all into the same file, create a bunch of "drivers" which are responsible for setting up connections and possibly moving some of the SQL queries like initialisation checks onto them in the event they're not even bothering with ANSI SQL compliance.

At some point in the future look into making this a pluggable system so users can extend this tool by slapping other drivers into it rather than modifying the core codebase.