- Added datums and icons for custom ears.
- Added datums and icons for custom tails.
- Added datums and icons for taurs, now a subtype of tails.
- Integrated into icon_updates() for in game appearance.
- Integrated into preferences_setup() for character setup preview.
- Added ears and tails to the character setup screen.
- Enabled nagataur support for micro/macro step-over messages.
* Instead of "playerscale" we are using pre-existing variable
"size_multiplier" but we move it to /mob/living
* Added basic mechanics of size changing.
* Mousetraps snap small people even if they have shoes.
* Big people can walk over small people, or stomp them, or capture them
in foot slot.
* Ported holder for micros, making small people scoopable.
* Tied held micros in with the vore code so they are edible.
* Ported size-altering reagents and recipies.
* Ported size gun along with associated sprites and sounds.
