big refactoring: classes related to settings

...a/de/deadlocker8/budgetmaster/advices/SettingsAdvice.java

...locker8/budgetmaster/controller/DatePickerController.java

...adlocker8/budgetmaster/controller/SettingsController.java

...de/deadlocker8/budgetmaster/reports/ReportController.java

.../de/deadlocker8/budgetmaster/services/HelpersService.java

...eadlocker8/budgetmaster/services/LocalizationService.java

...n/java/de/deadlocker8/budgetmaster/settings/Settings.java

...deadlocker8/budgetmaster/settings/SettingsRepository.java

...de/deadlocker8/budgetmaster/settings/SettingsService.java

.../java/de/deadlocker8/budgetmaster/tags/TagRepository.java

...ker8/budgetmaster/transactions/TransactionController.java

...ocker8/budgetmaster/update/BudgetMasterUpdateService.java