SP-154 / BIS-38 - Improve checksum check for share moving

...java/ch/systemsx/cisd/etlserver/plugins/DataSetMover.java

...ava/ch/systemsx/cisd/etlserver/plugins/IDataSetMover.java

...x/cisd/etlserver/postregistration/EagerShufflingTask.java

...s/generic/shared/HierarchicalContentChecksumProvider.java

...sx/cisd/openbis/dss/generic/shared/IChecksumProvider.java

...openbis/dss/generic/shared/utils/SegmentedStoreUtils.java

.../systemsx/cisd/etlserver/plugins/SimpleShufflingTest.java

...sd/etlserver/postregistration/EagerShufflingTaskTest.java

...bis/dss/generic/shared/utils/SegmentedStoreUtilsTest.java