[EMF] Entity Model Features

• updated to 1.21.5
• added warm_ and cold_ model variants for the new pigs, chickens, and cows, they will attempt to fallback to the old model if the new one is not present
• cold_cow.jem also has right_horn and left_horn parts, all other model differences for the 3 mobs are done via cubes only, not new parts
• fixed ResourceLocationException log spam when attempting to find modded chest models
• removed all code for the partial physics mod compat option as official physics mod compatibility is coming soon to the physics mod :)
• added a fallback model list to the right click debug log options

1.21.5-pre