Removed FourierFilter and FourierNoteFilter classes
Fixed compile warning in GradDescOptimiser
Add IFourierFilter interface
Major cleanup; Removed ShortTimeFftw classes
Renamed AdvancedFourier classes (removed Advanced)
Refactor FourierAlgorithm, StftAlgorithm
No more data storage in StftAlgorithm, created RawStftData class
Add DevSuite, class like testSuite for developement tests
Develop sidelobe subtraction