scottdyer merge branch 'release/v1.3'
1256fee May 1, 2021
merge branch 'release/v1.3'
* New Features:
    * Add gamut compression transform to assist with remapping problematic colorimetry into AP1
    * Update AMF schema to with refinements by the AMF Implementation Working Group:
        * Update all `aces:transformType`s to have choice of `aces:uuid`, `aces:file`, or `aces:transformId`
        * Modify `outputTransformType` to no longer be an extension of `transformType`
        * Update choice occurences to disallow the possibility of empty transform tags
    * Add CSC transforms for Sony Venice
* Bug fixes:
    * Remove clamp in ACES to ACEScg conversion transform
    * Correct typos in the TransformIDs of CSC files added in v1.2
* Other:
    * Relocate ACES documentation to its own repository
    * Rename `outputTransforms` directory to `outputTransform` (singular)
    * Add color primary subdirectories to `outputTransform` directory to be consistent with the `odt` directory
    * Update reference images:
        * Add images to accompany new gamut compression transform
        * Add images to accompany Sony Venice CSC transforms
        * Update images for ACES <--> ACEScg conversion transforms
1256fee