SE-229 first database change: adding coverage column

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

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

.../plugin/phosphonetx/server/business/AbundanceManager.java

.../plugin/phosphonetx/server/business/ProteinInfoTable.java

...lugin/phosphonetx/server/dataaccess/IProteinQueryDAO.java

...osphonetx/server/dataaccess/db/PhosphoNetXDAOFactory.java

...er/dataaccess/db/migration/MigrationStepFrom002To003.java

...osphonetx/shared/dto/ProteinReferenceWithProbability.java

.../plugin/phosphonetx/shared/dto/ProteinWithAbundances.java

rtd_phosphonetx/source/java/service.properties

rtd_phosphonetx/source/sql/postgresql/003/schema-003.sql

...etx/source/sql/postgresql/migration/migration-002-003.sql

...nbis/etlserver/phosphonetx/ResultDataSetUploaderTest.java