Adds scarves

This PR includes 14 scarf types.
The first 11 are sprited by Nienhaus. These come in 9 solid colors (red, green, dark blue, orange, light blue, yellow, black, white, and purple) and 2 striped varieties (a black/white "zebra" scarf and a red/green "christmas" scarf").

The next 3 are made by MrSnapwalk and have a more striped pattern. They come in red, blue, and green.

These can all be equipped as jumpsuit accesories in the tie slot.
They are available from the ClothesMate vendomat, one unit of each.