Log Message:
libbdplus: updated to 0.2.0

2022-03-06: Version 0.2.0
- Add support for cached conversion tables.
- Fix config path charset issues in Win32.
- Use BDPLUS_DEBUG_FILE environment variable for log file.
- Export API functions automatically when creating Windows dll.
- Improve Windows compatibility.
- Improve error resilience and stability.
- Fix leaks.