[MoM] Add the hellhound, a pyrokinetic dog

[Standing-Storm]

Summary

Mods "[MoM] Add the hellhound, a pyrokinetic dog"

Purpose of change

Had the idea this morning and I liked it enough to include it.

Describe the solution

Add the hellhound, a dog with pyrokinesis. This is a formerly domestic dog, so you can still tame it. It emits warm air (conditional monster emits are currently impossible or I'd turn this off in the summer) and can use the Flamethrower power, but otherwise it's a dog. It's not any faster or more resilient than a household dog.

Hellhounds have a chance to have hellhound pups, but their pups are otherwise normal dogs.

Describe alternatives you've considered

Testing

WIP

Additional context