Compile with cmake and install with distutils

[FrancescElies]

Context: To upgrade c-blosc distutils AVX2 detection is needed (https://groups.google.com/forum/#!searchin/bcolz/detection/bcolz/k0CXUZANClA/K6bbzivtrw4J).

Maybe devolve compiling to cmake and installation to distutils could avoid implementing AVX2 detection inside distutils.

Source: http://stackoverflow.com/questions/18360245/python-c-compiling-shared-library-with-cmake-and-installing-with-distutils

[FrancescElies]

If in the end this turns to be useful, I believe this would require cmake as a dependency. cmake is available in anaconda, but for pip install users I guess would take extra efforts