COMP: Ensure optimized atlas, blas, mkl or lapack libraries are not discovered

When building NUMPY, it causes more harm than it helps to have the automatic
discovery of these libraries. Especially due to Fortran ABI mismatch [1].

It is also agree that compiling against an optimized version of these libraries
would probably make sens, it should be handled on a case by case basis by the
developer. A variable named NUMPY_ENABLE_OPTIMZED_LIBRARY or similar could
then be added.

[1] http://docs.scipy.org/doc/numpy/user/install.html#fortran-abi-mismatch

git-svn-id: http://svn.slicer.org/Slicer4/trunk@21639 3bd1e089-480b-0410-8dfb-8563597acbee