8.00

• Add AMF vpp filters.
  • --vpp-resize amf_xxx
  • --vpp-preprocess (8bit only)
  • --vpp-enhance
• Now HEVC encoding (8bit) can be used with --pa or --qvbr. ( #73 )
• Improve stability when using hw decoder.
• Fix encoding freezing when --pa used with hw decoder.
• Improve master display metadata handling for AV1 encoding.
• Fix wrong metadata written when --max-cll was not specified.
• Fix --audio-copy by language not working properly.
• Improve log output.