Added test files and final application
Added frequencyTransform prototype as private method
Modified frequencyTransform prototype, now it accepts an enum indicating the
the direction of the transformation
Implemented transform spatial domain to frequency domain on frequencyTransform
method
Initial makefile
Corrected minor syntax errors
Validando cambios
Primera version de la inversa de la transformada de fourier
Fixed UnsharpMask::frequencyTransform, now it will convert to frequency domain
but you will no able to see spectrum