OpenColorIO stanza for SLog3 / SGamut3 transform

config-snippet.ocio

  - !<ColorSpace>
    name: Sony-S-Log3-S-Gamut3.Cine
    family:
    equalitygroup:
    bitdepth: 32f
    description: |
      S-Log3-S-Gamut3.Cine to XYZ to 709
    isdata: false
    allocation: uniform
    allocationvars: [0, 1]
    to_reference: !<GroupTransform>
      children:
        - !<FileTransform> {src: S-Log3_to_linear.spi1d, interpolation: linear}
        # S-Gamut3.Cine to XYZ Matrix
        - !<MatrixTransform> {matrix: [0.5990839208, 0.2150758201, -0.0320658495, 0, 0.2489255161, 0.8850685017, -0.0276583907, 0, 0.1024464902, -0.1001443219, 1.148781991, 0, 0, 0, 0, 1]}
        # XYZ to 709 matrix
        - !<MatrixTransform> {matrix: [3.2404542, -0.9692660, 0.0556434, 0, -1.5371385, 1.8760108, -0.2040259, 0, -0.4985314, 0.0415560, 1.0572252, 0, 0, 0, 0, 1]}