AutoCreate.CreateOrUpdate should use CreationStyle.CreateIfNotExists

[apii]

I'm using the db-patch command to export database creation scripts to files. It says that setting the --auto-create flag should control the way that tables/functions are created but I don't think that it's actually doing that. Both CreateOrUpdate and CreateOnly seem to generate scripts that will first drop the table and then create it.

Since the database exporter already seems to have capability to update tables without dropping them, I think this should also be settable from the command line.