Adding SimpleITK

Adding basic SimpleITK build script for SimpleITK using CMake.
Adding SimpleITK

Add basic SimpleITK build script for SimpleITK using CMake.
Use conda system libraries for SimpleITK

Adding build and runtime dependencies for tiff, png, jpeg, and zlib.
Adding dependency on patchelf for linux

When building on RHEL 6, patchelf is not available as a standard
patch. Add as a dependency in conda.
Adding basic run_test.py test for SimpleITK
Remove patchelf dependency

Disable testing.

Use git protocol for maximum portability.
Add dependency on setuptools

This make is to ez_setup does not download the dependency and is
provided by conda.
Merge pull request #140 from blowekamp/AddSimpleITKRecipe

Add recipe for SimpleITK