Release v0.1.0-20200303

• Enhancement
  • Introduce --attach-alpha and --attach-depth flags to support alpha and depth channels.
  • Introduce --color-primaries, --transfer-characteristics and --matrix-coefficients flags to set color information.
    • [LIMITATION] --matrix-coefficients is not working as intended. cavif always converts with BT.2020.
• Bug fix
  • Use Visual Studio 2019 image to prevent deadlock issue in pthread.
  • Default value of Transfer characteristics should be sRGB, but not.