Okay I got the UVs down. Normals, no idea.
Top face is the brightest, so its
0 0 1
0 0 1
0 0 1
0 0 1
Bottom face is darkest, so its
0 0 -1
0 0 -1
0 0 -1
0 0 -1
North quads are
0 1 0
0 1 0
0 1 0
0 1 0
East quads are
1 0 0
1 0 0
1 0 0
1 0 0
South quads are
0 -1 0
0 -1 0
0 -1 0
0 -1 0
West quads are
-1 0 0
-1 0 0
-1 0 0
-1 0 0
It defines the lighting on the face, say, you want to mix brightest with darkest, you do
0 0 1
0 0 1
0 0 -1
0 0 -1