off-simple-0.1: tests/samples/cube.offc

OFFC
8 6 12
 1.0   1.0   1.0
-1.0   1.0   1.0
-1.0  -1.0   1.0
 1.0  -1.0   1.0
 1.0   1.0  -1.0
-1.0   1.0  -1.0
-1.0  -1.0  -1.0
 1.0  -1.0  -1.0
4  0 1 2 3    1 0 0
4  7 6 5 4    0 1 0
4  0 3 7 4    0 0 1
4  3 2 6 7    1 1 0
4  2 1 5 6    1 0 1
4  0 4 5 1    0 1 1