Added constant:
- SQLITE_DBCONFIG_DQS_DML, SQLITE_DBCONFIG_DQS_DDL, SQLITE_DBCONFIG_LEGACY_ALTER_TABLE
- Updated Connection.config() with all current SQLITE_DBCONFIG constants.
- SQLITE_DBCONFIG_WRITABLE_SCHEMA
- SQLITE_CONFIG_MEMDB_MAXSIZE, SQLITE_FCNTL_SIZE_LIMIT
Other changes:
- Added support for the geopoly extension.
- Removed hash optimisation that isn’t useful any more
Signed-off-by: Pierre-Yves <pyu@riseup.net>