Added support for a custom layout attributes class - it is useful to be able to pass the progress, for example, to the cells during complex transitions
Added support for a custom layout attributes class - it is useful to be able to pass the progress, for example, to the cells during complex transitions

dillan/TLLayoutTransitioning,dillan/TLLayoutTransitioning,dillan/TLLayoutTransitioning,wtmoose/TLLayoutTransitioning