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.
improve the precision of the simulated data and corrected a couple of tests
Merge branch 'develop' of https://github.com/LuisFF/nmr-fid-tool into phasing
new tests for DSPPhaseCorrection class and small corrections to the class