Covering more DNS record types to be tested

1) test_create_and_delete_records_on_existing_zone
   Extending of the existing test to cover more recordset types.
2) test_create_soa_record_not_permitted
   No user is able to create a SOA record.

Change-Id: If09d793f786de7c2530eb08026afeda76b2df766
2 files changed