`tints` field in item models is not available for other item model types apart from `minecraft:model`

Previously item model overrides allowed `tintindex` to be applied to items dynamically based on the item type for every unique override.

In order to accomplish this now with new item model format `tints` field needs to be applied manually to each case or entry of a distinct model type that contains `minecraft:model`.

For example in order to apply a `tints` override to every `custom_model_data` property entry within a `minecraft:range_dispatch` model type requires to manually apply the field to each model individually.

Ideally this should be possible through applying the field to all existing model types instead if needed.