Firebird for SQLAlchemy 2.1 is released

Firebird for SQLAlchemy 2.1 is released with a few changes merged :

• Improves development documentation (Fix [QUESTION] How can be run tests? #57)
• Adds configuration and scripts to simplify the creation of test environment (Windows).
• Adds VSCode files for easier development experience
• Better disconnect detection (Fix is_disconnect() doesn’t trigger when using FDB #38)
• Removes unused code / Update from legacy sources
• Adds SELECT … FOR UPDATE / WITH LOCK / SKIP LOCKED support
• Adds support for DESCENDING indices (Fix Support for descending indexes #6)
• Adds support for PARTIAL indices (Firebird 5.0+)
• Fix BIN_XOR operator
• Adds support for GENERATED BY DEFAULT / ALWAYS computed columns.
• Adds several new tests (source: PostgreSQL Dialect)
• Fix last failing tests (Fix Fix tests (not running, failing, hanging) #62)