Reorganize the History Cleanup tests for better maintenance.
- HistoryCleanupTest - job handler related test cases; removal of the data test cases; metrics tests
- HistoricInstanceForCleanupQueryTest - tests order of the results
*HistoryCleanupTest - split it up at least two tests (one for Job Handler related test cases and one for testing the removal of the data)
*Are there any missing tests?