big refactoring: classes related to filter and database

src/main/java/de/deadlocker8/budgetmaster/services/DatabaseService.java → src/main/java/de/deadlocker8/budgetmaster/database/DatabaseService.java

-package de.deadlocker8.budgetmaster.services;
+package de.deadlocker8.budgetmaster.database;
 
 import com.google.gson.*;
 import de.deadlocker8.budgetmaster.accounts.AccountService;

src/main/java/de/deadlocker8/budgetmaster/controller/FilterController.java → src/main/java/de/deadlocker8/budgetmaster/filter/FilterController.java

-package de.deadlocker8.budgetmaster.controller;
+package de.deadlocker8.budgetmaster.filter;
 
-import de.deadlocker8.budgetmaster.filter.FilterConfiguration;
+import de.deadlocker8.budgetmaster.controller.BaseController;
 import de.deadlocker8.budgetmaster.categories.CategoryService;
-import de.deadlocker8.budgetmaster.services.FilterHelpersService;
 import de.deadlocker8.budgetmaster.services.HelpersService;
 import de.deadlocker8.budgetmaster.transactions.TransactionService;
 import org.springframework.beans.factory.annotation.Autowired;

src/main/java/de/deadlocker8/budgetmaster/services/FilterHelpersService.java → src/main/java/de/deadlocker8/budgetmaster/filter/FilterHelpersService.java

-package de.deadlocker8.budgetmaster.services;
+package de.deadlocker8.budgetmaster.filter;
 
 import de.deadlocker8.budgetmaster.categories.Category;
 import de.deadlocker8.budgetmaster.categories.CategoryService;

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

@@ -3,6 +3,7 @@ package de.deadlocker8.budgetmaster.reports;
 import com.itextpdf.text.DocumentException;
 import de.deadlocker8.budgetmaster.categories.CategoryService;
 import de.deadlocker8.budgetmaster.controller.BaseController;
+import de.deadlocker8.budgetmaster.filter.FilterHelpersService;
 import de.deadlocker8.budgetmaster.settings.SettingsService;
 import de.deadlocker8.budgetmaster.transactions.Transaction;
 import de.deadlocker8.budgetmaster.accounts.Account;

src/main/java/de/deadlocker8/budgetmaster/settings/SettingsController.java

@@ -8,10 +8,9 @@ import de.deadlocker8.budgetmaster.categories.CategoryService;
 import de.deadlocker8.budgetmaster.controller.BaseController;
 import de.deadlocker8.budgetmaster.database.Database;
 import de.deadlocker8.budgetmaster.database.DatabaseParser;
+import de.deadlocker8.budgetmaster.database.DatabaseService;
 import de.deadlocker8.budgetmaster.database.accountmatches.AccountMatchList;
 import de.deadlocker8.budgetmaster.categories.CategoryType;
-import de.deadlocker8.budgetmaster.settings.Settings;
-import de.deadlocker8.budgetmaster.settings.SettingsRepository;
 import de.deadlocker8.budgetmaster.services.*;
 import de.deadlocker8.budgetmaster.update.BudgetMasterUpdateService;
 import de.deadlocker8.budgetmaster.utils.LanguageType;

src/main/java/de/deadlocker8/budgetmaster/transactions/TransactionController.java

@@ -13,7 +13,7 @@ import de.deadlocker8.budgetmaster.repeating.endoption.*;
 import de.deadlocker8.budgetmaster.repeating.modifier.RepeatingModifier;
 import de.deadlocker8.budgetmaster.repeating.modifier.RepeatingModifierType;
 import de.deadlocker8.budgetmaster.accounts.AccountService;
-import de.deadlocker8.budgetmaster.services.FilterHelpersService;
+import de.deadlocker8.budgetmaster.filter.FilterHelpersService;
 import de.deadlocker8.budgetmaster.services.HelpersService;
 import de.deadlocker8.budgetmaster.tags.TagRepository;
 import de.deadlocker8.budgetmaster.utils.ResourceNotFoundException;