PeronDAOImp edited, test added

AT FIRST I had to edit this method, because there was: WHERE p.personID
= ... but personID column does not exist, because person ID is called
simple "id"...so I changed the query. Anyway, the test
testGetPersonById()  FAILS because "No entity found for query" there is
some problem with query, it assign no value to person.id: "from Person
person0_ where person0_.id=?"
person tests added 2

testDeletePerson() - FAIL, because getPersonById() methot, which is used
in delete person methot does not work also, see testGetPersonById()
results (no entity for this query found)
person tests added 3

testUpdatePerson() - FAIL