rename mothman -> mothman_(mythology)

BUR #56335 has been approved by @nonamethanks.

rename mothman -> mothman_(mythology)

To fit the freshly created North American Mythology tag, and because it's ambiguous.

BUR #56337 has been approved by @nonamethanks.

category bigfoot -> character
rename bigfoot -> bigfoot_(mythology)
create alias sasquatch_(mythology) -> bigfoot_(mythology)

Going to propose similarly for Bigfoot, except also turning it into a chartag so it can be untagged from Sasquatch (Darkstalkers) and Zuou (Legendz).

The bulk update request #56335 (forum #423950) has been approved by @nonamethanks.

The bulk update request #56337 (forum #423955) has been approved by @nonamethanks.