Fixed messages in main
Add SampledMovingAverage; Some development on peak detection for SRSpectrum.
Moved moving average from development to test code
Add NTuple, TwoTuple classes
Add sorting to NTuple, Rename moving average class
Add comments NTuple, renaming methods.
Add SortCache class.
Completed SortCache class, edit test code.
Delete ConsoleSoundPlayback class
Remove IFourierFilter class
Add function header comments.