Add Cat mounts

[Enkidoh]

A coeurl mount has been in the game since ARR's launch - it was included with the Collector's Edition of ARR, but it should still be available even if you have the 'standard' version of the game, as SE also offered it as part of a 'digital upgrade' to your account where you can purchase the CE items if you had a standard version. This upgrade was formerly offered on the Mogstation so I have no idea if this is still available or not.

[Spirlia]

Basically, hold tight. We'll probably see them from 5.x or 6.x primals. It wouldn't make sense to release a whole set of cat mounts for any other reason.