- Added graphics assignment 9.

graphics/ass9/datasets/bear.128.vtk

graphics/ass9/datasets/bear.256.vtk

graphics/ass9/datasets/bear.64.vtk

graphics/ass9/datasets/frog.small.vtk

graphics/ass9/datasets/half16.vtk

graphics/ass9/datasets/half2.vtk

graphics/ass9/datasets/half3.vtk

graphics/ass9/datasets/half4.vtk

graphics/ass9/datasets/knee.small.vtk

graphics/ass9/datasets/knee.vtk

graphics/ass9/datasets/mummy.128.vtk

graphics/ass9/datasets/mummy.50.vtk

graphics/ass9/datasets/mummy.80.vtk

graphics/ass9/datasets/sphere16.vtk

graphics/ass9/datasets/sphere5.vtk

graphics/ass9/source/Makefile

graphics/ass9/source/main

graphics/ass9/source/main.c

graphics/ass9/source/marching_tetrahedra.c

graphics/ass9/source/marching_tetrahedra.h