add forgotten system tests

...eb/client/application/ui/SampleBatchRegistrationMock.java

...t/application/ui/sample_browser/GroupSelectionWidget.java

...ient/application/ui/sample_browser/SampleBrowserGrid.java

...t/application/ui/sample_browser/SampleBrowserToolbar.java

...lication/ui/sample_browser/SampleTypeSelectionWidget.java

...ent/application/sample/GenericSampleRegistrationForm.java

...ava/ch/systemsx/cisd/openbis/generic/SystemTestSuite.java

...ient/web/client/application/ui/ChooseTypeOfNewSample.java

...bis/generic/client/web/client/application/ui/OpenTab.java

...lient/application/ui/sample_browser/CheckSampleTable.java

...web/client/application/ui/sample_browser/ListSamples.java

...ic/client/web/client/testframework/CheckTableCommand.java

.../generic/client/web/client/testframework/GWTTestUtil.java

...client/application/sample/FillSampleRegistrationForm.java

...ent/application/sample/GenericSampleRegistrationTest.java