#598 - moved converters to v6 package

...er8/budgetmaster/database/model/v5/BackupDatabase_v5.java

...ster/database/model/v5/converter/AccountConverter_v5.java

...ter/database/model/v5/converter/CategoryConverter_v5.java

...master/database/model/v5/converter/ChartConverter_v5.java

...master/database/model/v5/converter/ImageConverter_v5.java

...ter/database/model/v5/converter/TemplateConverter_v5.java

.../database/model/v5/converter/TransactionConverter_v5.java

...abase/model/v6/converter/RepeatingEndOptionConverter.java

...tabase/model/v6/converter/RepeatingModifierConverter.java

...database/model/v6/converter/RepeatingOptionConverter.java

...udgetmaster/database/model/v6/converter/TagConverter.java

...master/database/model/v6/converter/TemplateConverter.java

...ter/database/model/v6/converter/TransactionConverter.java