Filesystem update.

neo/engine/opengl/tess/tessellate.h

@@ -0,0 +1,13 @@
+typedef struct Vertex {
+    double pt[3];
+    int index;
+    struct Vertex *prev;
+} Vertex;
+
+void tessellate
+    (double **verts,
+     int *nverts,
+     int **tris,
+     int *ntris,
+     const double **contoursbegin, 
+     const double **contoursend);