LMS-2769 - ETLService methods are too slow

...generic/server/ftp/resolver/ExperimentFolderResolver.java

...ss/generic/server/ftp/resolver/ProjectFolderResolver.java

...er/ftp/resolver/TemplateBasedDataSetResourceResolver.java

...tp/resolver/TemplateBasedDataSetResourceResolverTest.java

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

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

...server/business/bo/experimentlister/ExperimentLister.java

...erver/business/bo/experimentlister/IExperimentLister.java

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

...msx/cisd/openbis/generic/shared/basic/dto/Experiment.java

...enbis/generic/shared/basic/dto/ExperimentFetchOption.java

...nbis/generic/shared/basic/dto/ExperimentFetchOptions.java

...x/cisd/openbis/generic/server/ETLServiceDatabaseTest.java

...er/business/bo/experimentlister/ExperimentListerTest.java

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