[Feature request] [Layout animations] Option to skip layout transitions, one-shot layout transitions

[mhoran]

Similar to #2513, I'm looking for an easier way to selectively disable layout transitions. For example, I'd like to animate the layout change of an input box when a button appears in the same row. I achieved this easily with React Native LayoutAnimation.configureNext previously. In moving to Reanimated, I've been able to recreate this behavior by reacting to the state change and swapping out the configured layout between LinearTransition and undefined. I've also added a withCallback to the animation which disables the animation once it has fired, effectively making it one-shot.

I could see extending LayoutAnimationConfig with a skipTransition argument. That takes care of half of the problem. Regarding one-shot animations, I have added a single withCallback to one of the animations that will fire, which sets the layout to undefined. I wonder if this should be pulled up higher, e.g. to the LayoutAnimationConfig or similar, to help with readability/discoverability.