Pet The Frog massive expansion!

No longer is petting limited to just Frogs.
Now, you can pet every friendly animal, some of which will give a delightful action in response! 

Frogs will croak, slimes will squish, and much more

Now, this is a major overhaul of the mod, which means more chance for bugs to creep in, alongside some important notices:
> While This is a client-side mod, certain features require serverside support. notably:
- Tamed animals like dogs and cats can be pet when right clicking, and (when on the server), can be toggled between sit and stand by shift right clicking
- Horses, Donkeys, Mules, Llamas, and Camels require the mod serverside for full support. To pet them, you crouch right click them, and to open their dedicated inventory, you hold down right click while crouching.
- Parrots must be pet when crouched, and you can hold down right click while crouching to pick them up onto your shoulder