added c extension for tessellation

Author: Tristan

examples.py

@@ -8,7 +8,7 @@
 Some quick examples
 """
 
-A = imresize(lena(), (256, 256))  # load Lena image, shrink in half
+A = lena()  # load Lena image, shrink in half
 A = gaussian_filter(A, 1)  # smoothing
 numpy2stl(A, "examples/Lena.stl", scale=0.1, solid=False)
 

stl_tools/__init__.py

@@ -1,2 +1,3 @@
 from .numpy2stl import numpy2stl
 from .text2png import text2png, text2array
+from .cwrapped import tessellate