Adding FFTW3 with components
Adding FFTW3 with components

Closes #1

UCL/GreatCMakeCookOff,mbakthav/GreatCMakeCookOff,mbakthav/GreatCMakeCookOff,mbakthav/GreatCMakeCookOff,UCL/GreatCMakeCookOff,UCL/GreatCMakeCookOff,mbakthav/GreatCMakeCookOff,UCL/GreatCMakeCookOff