Batch Stem Separation

Changes to Split multiple files into stems using the stem separator presets

post/api/v1/split/batch/stem_separator/
    • info

      added the non-success response with the status

    • info

      added the new guitar enum value to the request property ///

    • info

      the request property default value auto was added

    • info

      added the new lynx enum value to the request property ////