The NeoForge version now has a tool to handle all of the states of the pleaceable mobs.

Placeable Mobs allows you to place lots of the minecraft mobs as placeable blocks!
It's designed to work with most texture packs that use default vanilla mappings and the mobs have different poses depending on the type of scene you are trying to create.

I hope you enjoy using placeable mobs.
If you would like to support this or any of the other things that I am working on Patreon is an amazing way to say thank you.
Come say hi, ask questions or make suggestions for the mod
I stream over on twitch using this mod!
More stuff