Closes#559Closes#235
Refs https://github.com/simonw/llm/issues/60
- Uses `sqlean` in place of `sqlite3` if `sqlean.py` is installed
- Uses `sqlite-dump` if available and `conn.iterdump()` does not exist
- New `with db.ensure_autocommit_off()` method for ensuring autocommit is off, used by `enable_wal()` and `disable_wal()`.
* Add SpatiaLite CLI helpers
* Add docs for spaitalite helpers
* Fix flake8 issues and add more detail on spatial types
* Run cog and add some help text.
* Use SpatiaLite when calculating coverage, refs #407
Co-authored-by: Simon Willison <swillison@gmail.com>