Add possibility for bidirectional 1:1 relationships

strong*1.*strong when adding a field reference [...] --cardinality ONE_TO_ONE to two entities to get a bidirectional 1:1, exception occurs:
java.lang.IllegalArgumentException: Invalid dependency between upstream 'MID:org.springframework.roo.addon.dod.DataOnDeman dMetadata#SRC_TEST_JAVA?[...].domain.ClassADataOnDemand' and downstream 'MID:org.springframework.roo.addon.dod.DataOnDeman dMetadata#SRC_TEST_JAVA?[...].domain.ClassBDataOnDemand
This should be already fixed according to ROO-2322 (https://jira.springsource.org/browse/ROO-2322)?

strong*2.*strong at the moment it's not possible to add strong--mappedBy*strong* to a field reference [...] --cardinality ONE_TO_ONE relationship, you can only add JPA mappedBy manually.