Baby Animals and Rabbit model Backport

 **Backported all current baby and rabbit models from 26.1 down to 1.19.4!** 1.21.11 to 1.19.4 compatible (could be compatible below that but not tested) Requires OptiFine or ETF/EMF This pack is purely cosmetic, it does not change the original mobs coding (hitboxes may not be accurate) Features/Bugs/Inconsistencies Features: - Adds new baby models and textures from 26.1 - Fixed z-fighting and pivot points in original snapshot models Bugs/Inconsistencies: - No support for Dolphin and Squid/Glowsquid as babies can't spawn in past versions - No new Rabbit animations - Inconsistent hitboxes (Rabbit hitboxes are much smaller than the model) Tutorial Due to OptiFine having inconsistent updates and features, its recommended to use mods: EMF & ETF instead If using OptiFine, make sure to enable these settings for complete features: Video Settings -> Quality -> Custom Entity Models: ON Random Entities -> ON Emissive Textures -> ON In order to prevent texture issues, this pack should be at the TOP of your Resource Pack list.