SP-99, BIS-60: Introducing IEntityOperationChecker and EntityOperationTest.

.../systemsx/cisd/openbis/generic/server/AbstractServer.java

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

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

.../cisd/openbis/generic/server/IEntityOperationChecker.java

...c/shared/authorization/predicate/NewProjectPredicate.java

openbis/source/java/genericApplicationContext.xml

.../systemsx/cisd/openbis/generic/server/ETLServiceTest.java

...systemsx/cisd/openbis/systemtest/EntityOperationTest.java

...emsx/cisd/openbis/systemtest/RelationshipServiceTest.java

...a/ch/systemsx/cisd/openbis/systemtest/SystemTestCase.java