Support for Data Change Notification Callbacks (sqlite3_update_hook)

[Gozala]

It would be really nice to have support for Data Change Notification Callbacks, which are implemented in the SQLite C interface by the sqlite3_update_hook() function.

We would like to access db from multiple worker threads and leverage update hooks to be notified of changes whenever one of the threads makes changes.

[DjDeveloperr]

This should be easy to add. I'll work on it