LMS-2174 feeding database with modification fractions

...x/cisd/openbis/etlserver/phosphonetx/AbstractHandler.java

.../openbis/etlserver/phosphonetx/AbstractSampleHandler.java

.../cisd/openbis/etlserver/phosphonetx/AbundanceHandler.java

...systemsx/cisd/openbis/etlserver/phosphonetx/IProtDAO.java

...d/openbis/etlserver/phosphonetx/ModificationFraction.java

...is/etlserver/phosphonetx/ModificationFractionHandler.java

.../openbis/etlserver/phosphonetx/ResultDataSetUploader.java

...cisd/openbis/etlserver/phosphonetx/dto/AminoAcidMass.java

...temsx/cisd/openbis/etlserver/phosphonetx/dto/Peptide.java