A revised quadruped template.

This template should be used for all new four footed animal models.
The old quadruped template is retained for backward compatibility.


This version fixes a number of problems with the original template, and adds many new texture sections,
as well as better support for various types of animals.

Some highlights:
- Eases UV mapping and texture painting by using cylindrical mappings where possible, and avoiding curved edges
- The neck (as well as the tail) can be tiled, to enable giraffes(sp), long necked dinosaurs, and other similar animals.
- Includes a trunk texture that can be used instead of the upper jaw on pig and elephant like animals, 
  and can be tiled to form a long snout.
- Includes lots of alpha channel enabled hair textures, that can be used for manes, beards, long hanging fur, etc.
- Includes small details like whiskers, eyelashes, teeth, tongue, etc. that help making the animals look detailed.
- The tail attachment supports both thin tailed animals like most mammals, and thick tailed animals like most reptiles.
- Support for horns and antlers


Some things to note:
- Eyes are closed on the textures, and separate eye meshes should be used, with textures following the eye template
  (can be found in 3d_objects/body_parts/eyes/ )
- The underside of the snout base is used as the upper jaw when the snout is used.  It is still a bit unclear
  how this should best be modeled and mapped, and might still change a bit
- The alpha mapped claws can be used for small or low LOD models, and the finger and claw textures for bigger
  or more detailed models with geometry based claws.
- On animals like cats and dogs the legs end by having the leg upper sides connect to the leg undersides.
  On animals like horses and elephants the legs end in either a hoof or flat leg bottom texture, that
  the leg upper and underside connect to in a cylindrical way.


-- zzorn 2003-11-20