Deleted files:
* `bulk_deletable.dart`
* `bulk_insertable.dart`
* `bulk_manager.dart`
* `dao_product_extra.dart`
* `label_sneek_peak_view.dart`
* `list_page.dart`
* `multi_product_select_page.dart`
* `product_copy_helper.dart`
* `product_copy_view.dart`
* `product_extra.dart`
* `product_list_add_button.dart`
* `product_list_button.dart`
* `product_list_item.dart`
* `product_list_item_pantry.dart`
* `product_list_item_shopping.dart`
* `product_list_preview.dart`
* `product_list_preview_helper.dart`
Impacted files:
* `abstract_dao.dart`: added hive related init methods
* `barcode_product_query.dart`: minor refactoring
* `category_product_query.dart`: minor refactoring
* `continuous_scan_model.dart`: minor refactoring
* `dao_product.dart`: rewritten from scratch with hive instead of sqflite - much easier to understand!
* `dao_product_list.dart`: rewritten from scratch with hive instead of sqflite - much easier to understand!
* `dao_string_list.dart` (renamed from `search_history.dart`): rewritten from scratch with hive instead of sqflite
* `database_product_list_supplier.dart`: minor refactoring
* `group_product_query.dart`: minor refactoring
* `history_page.dart`: minor refactoring
* `keywords_product_query.dart`: minor refactoring
* `local_database.dart`: rewritten from scratch with hive instead of sqflite; simplified
* `main.dart`: minor refactoring
* `new_product_page.dart`: minor refactoring
* `personalized_ranking_page.dart`: removed old feature
* `product_list.dart`: preferred `enum` to `String` for types; removed tons of old features
* `product_list_dialog_helper.dart`: removed old feature
* `product_list_item_simple.dart`: removed old features
* `product_list_page.dart`: removed old features
* `product_page.dart`: removed old feature
* `product_query_page_helper.dart`: cleaner code with `enum`s
* `pubspec.yaml`: added hive, removed sqflite
* `query_product_list_supplier.dart`: minor refactoring
* `search_history_view.dart`: minor refactoring
* `search_page.dart`: minor refactoring
Database table `product_extra` replaces now dropped `product_list_item`.
New files:
* `bulk_deletable.dart`: Interface for bulk database deletes
* `bulk_insertable.dart`: Interface for bulk database inserts
* `bulk_manager.dart`: Manager for bulk database inserts and deletes
Impacted files:
* `abstract_dao.dart`: moved specific code to new classes `Bulk...`
* `dao_product.dart`: refactored
* `dao_product_extra.dart`: now manages the product list as "product extra"; now implements new interface `BulkDeletable`
* `dao_product_list.dart`: moved the data from table `product_list_item` to table `product_extra`; dropped table `product_list_item`; refactored
* `home_page.dart`: refresh after product list preview
* `list_page.dart`: refresh after product list preview
* `local_database.dart`: new database version
* `multi_select_product_page.dart`: refactored
* `product_copy_helper.dart`: refactored
* `product_list.dart`: added the list reordering feature; refactored
* `product_list_dialog_helper.dart`: refactored
* `product_list_page.dart`: some product lists are now reorderable and with dismissible items
* `product_list_preview.dart`: added the `andThen` parameter for a refresh afterwards
* `product_page.dart`: minor fix
* `query_product_list_supplier.dart`: refactored
* `smooth_it_model.dart`: refactored
New files:
* `abstract_dao.dart`: DAO abstraction
* `dao_product_extra.dart`: DAO for Product Extra data
Impacted files:
* `barcode_product_query.dart`: automatically storing the product in the database
* `continuous_scan_model.dart`: refactored
* `dao_product.dart`: now extends new class `AbstractDao`; moved code to new class `DaoProductExtra`; refactored; optimized bulk actions
* `dao_product_list.dart`: now extends new class `AbstractDao`; now using new class `DaoProductExtra`; removed a SQLite foreign key for performance reasons; not storing products anymore (it's done somewhere else)
* `database_product_list_supplier.dart`: refactored because of `ProductListSupplier`
* `local_database.dart`: new database version; added `DaoProductExtra`
* `main.dart`: more verbose database crash message
* `product_dialog_helper.dart`: minor refactoring
* `product_list_supplier.dart`: refactored
* `product_page.dart`: now we display the access, the scan and the refresh timestamps in the lousy temporary button
* `product_query_model.dart`: removed the code regarding storing products in the database as it's now done in the `QueryProductListSupplier`
* `product_query_page.dart`: minor refactoring
* `product_query_page_helper.dart`: refactored because of `ProductListSupplier`
* `query_product_list_supplier.dart`: automatically storing the products in the database; refactored because of `ProductListSupplier`
