Dog Command Whistle

This mod adds one item to the game. It adds an item called a dog whistle, it is made with iron nuggets like this:
N  |       |     
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     |  N  |  N   
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     |  N  |  N
It Allows you to make all dogs around you to be set to standing or siting, depending on it’s mode.
to be clear: It doesn’t toggle the dog’s mode, it sets their sitting or standing to the whistle’s mode. So if they are are already standing while the whistle is on standing mode the dog will stay standing.

RANGE: 40 BLOCKS around the player

This was made with having a large dog army in mind, being able to make hundreds of dogs stand or sit at will. Perfect for large pack dog breeding or commanding huge armies of dogs with ease. I made it because I hated having to tell my dogs to sit or stand one by one, What a pain!