TypedPython v2.1.16635

- Add QR code drawing function (requires firmware 76629+)
- Improve handling of special files during automated firmware update
- Improve handling of non-async code freezing the async loop
- Improve FreeAPI to give a chance to open requests to complete
- Improve memory usage of SSL contexts
- Fix handling of value/timed callbacks in some cases
- Fix YFunction cache (retrieve the proper type)
