Backward compatible API changes:
- Add opaque userData pointer to input access units and output frames
- Expose max reorder pics on vvdecSeqInfo
Other changes:
- Add Loongarch support through simd-everywhere
- SIMD optimizations for ARM
- Optimize scaling list dequantization
- Packed YUV output support in vvdecapp
- Add unit test framework
- Some threading and other bug fixes