phase correction classes implemented.
initial phasing test class. not working yet
New test for phase correction using simulated data. Additional information for phaseCorrection method.

Merge branch 'features' of https://github.com/LuisFF/nmr-fid-tool into phasing

Conflicts:
	src/test/java/uk/ac/ebi/nmr/fid/io/FidReaderTest.java
pulling new code from development branch. The serialised objects have improved precision.
Merge branch 'develop' of https://github.com/LuisFF/nmr-fid-tool into phasing
new tests for DSPPhaseCorrection class and small corrections to the class
implementation of the FastFourierTransform class and the first test. Deleted some old classes.
New method that allows to work with the entire fid but transforms only part of it. New fft test for that case.