Update ParallelPairwiseAlignment.fs
Update ParallelPairwiseAlignment.fs

-privatize functions which need not be visible to user
-remove "parallel" redundancy from module names
CSBiology/BioFSharp,HLWeil/BioFSharp,CSBiology/BioFSharp,muehlhaus/BioFSharp,HLWeil/BioFSharp,HLWeil/BioFSharp,HLWeil/BioFSharp,bvenn/BioFSharp,bvenn/BioFSharp,bvenn/BioFSharp