Implement the table_list pragma

[glommer]

SQLite queries the schema tables to implement this, so that tables can be printed out in order. For us, it would be quite cumbersome to do this, so we will just add a timestamp to the table creation.

[penberg]

Let's not take this path. For starters, this is not deterministic, so you'd anyway need to query io for time. But more importantly, we don't want to extend the sqlite_schema table because it can lead to subtle incompatibilities with SQLite.

If you don't want to run through the hoops to make the ordering right, just drop created_at, let's merge this, and open an issue for fixing the ordering.