fix install process
review tests process
fix (partial) arnoldi stuff which depends on lapack
...

Added missing main source (planner.cpp), added rpath and macro define parsing in setup.py.in, extended swig coverage

Fixed all fftw dependant c++ tests (now depends only on available fftw libraries), fixed another CmakeLists.txt bug.

Added another missing dependency, fixed fftw optional modules, added fftw quadmaths support with gcc.

Fix du cmake pour la génération de HySoP/hysop/f2hysop.pyf, ajout de FindSWIG.cmake pour corriger le bug de version trouvée.

Disabled google tests by default for c++, can be enabled with cmake variable 'GOOGLE_TEST' set to 'ON'.

Modified CMake and setup.py.in to generate only one swig c++ lib and use it for c++ mains and tests.

- fix bug poisson
- comment googletests (temp)
- comment fftw extra libs (fftwq ..., temp)