LPS-32256 Move utility methods to JournalTestUtil to allow reuse from other tests
LPS-32256 Move utility methods from JournalTransformerTest to journalTestUtil to reuse them
LPS-32256 Add utility methods to journalTestUtil to create content, structures and templates faster
LPS-32256 Move journal related utility methods from StagingImplTest to journalTestUtil to reuse them
LPS-32256 source formating