Adds gnolls to Dwarf Fortress as a playable race.

Contains:
- custom graphics based on Mayday
- new metal (gnoll steel)
- new tameable animals (hyena, dire hyena)

v1.4.3
Hyena sprites now display

v1.3.3
Extra military gnoll sprites for guards and royal guards.
Hyena and dire hyena sprites.
Bugs fixed
Gnollish artefacts taken out.

v1.2.2
Added military gnoll sprites

v1.2.1
Removed un-gnoll like jobs.
Added a new metal for making anvils out of- Gnoll Steel.

v1.1.1
Added an altered entity_default file to remove the playability of dwarves.

v1.1.0
Added gnoll sprites.

v0.5.0
A gnoll language file has been created.