add vcglib

vcglib/apps/meshes/quad5.ply

@@ -0,0 +1,22 @@
+ply
+format ascii 1.0
+comment VCGLIB generated
+element vertex 6
+property float x
+property float y
+property float z
+element face 6
+property list uchar int vertex_indices
+end_header
+-1 -1 0 
+ 1 -1 0 
+ 1  1 0 
+-1  1 0 
+-.1 -.1 0
+ .1 .1 0
+3 0 1 4 
+3 1 4 5
+3 1 2 5
+3 2 3 5 
+3 3 4 5 
+3 3 0 4