[Feature Request] Add animations

[killertofus]

example of what kde does https://www.youtube.com/watch?v=_ZgfyTtefOA

[WillPower3309]

Thanks for raising this! This is likely something that compositors will have to implement on their end, but I'll keep the issue up if things change

[WillPower3309]

somewhat related is #146 which will give comps a node to crossfade between two buffers, useful for resizing