#598 - moved repeating options model classes to v4

...master/database/model/v4/BackupRepeatingEndOption_v4.java

...tmaster/database/model/v4/BackupRepeatingModifier_v4.java

...getmaster/database/model/v4/BackupRepeatingOption_v4.java

.../budgetmaster/database/model/v5/BackupTransaction_v5.java

...se/model/v5/converter/RepeatingEndOptionConverter_v5.java

...ase/model/v5/converter/RepeatingModifierConverter_v5.java

...abase/model/v5/converter/RepeatingOptionConverter_v5.java

src/test/resources/DatabaseParser_v4Test.json