[SE-131] allow to get info about deleted data sets from openbis

...penbis/dss/generic/server/EncapsulatedOpenBISService.java

...enbis/dss/generic/shared/IEncapsulatedOpenBISService.java

...ch/systemsx/cisd/openbis/generic/server/CommonServer.java

...temsx/cisd/openbis/generic/server/CommonServerLogger.java

...a/ch/systemsx/cisd/openbis/generic/server/ETLService.java

...ystemsx/cisd/openbis/generic/server/ETLServiceLogger.java

...msx/cisd/openbis/generic/server/dataaccess/IEventDAO.java

...x/cisd/openbis/generic/server/dataaccess/IGenericDAO.java

...eneric/server/dataaccess/db/AbstractGenericEntityDAO.java

...x/cisd/openbis/generic/server/dataaccess/db/EventDAO.java

...systemsx/cisd/openbis/generic/shared/IETLLIMSService.java

...cisd/openbis/generic/shared/basic/dto/DeletedDataSet.java

...sd/openbis/generic/server/dataaccess/db/EventDAOTest.java

...cisd/openbis/generic/shared/IETLLIMSService.java.expected