- [x] Add env-based cub::DeviceAdjacentDifference::SubtractLeftCopy() - [x] Add env-based cub::DeviceAdjacentDifference::SubtractLeft() - [x] Add env-based cub::DeviceAdjacentDifference::SubtractRightCopy() - [x] Add env-based cub::DeviceAdjacentDifference::SubtractRight()