…d content filters

SearchFilterLogic.java:
=======================
This class handles all the user interaction with the content and sort filters
of NewPipeExtractor.

The class works standalone to just get the default selected filters eg.
during init phase. See in SearchFragment#initializeFilterData()

BaseSearchFilterUiGenerator.java:
=================================
It extends SearchFilterLogic and is used as a base class to implement the UI interface
for content and sort filter dialogs eg. SearchFilterDialogGenerator or
SearchFilterOptionMenuAlikeDialogGenerator.

…Generator

DividerItem was inserted in the content filter framework in the
NewPipeExtractor to have a section title for YoutubeMusic. But as
UI releated stuff seems a bit out of place in the Extractor I came
up with injecting the DividerItem aka section title in the frontend
without having to change too much in the frontend.

…ters

Dialog looks similar to a action menu based approach but is faster.

This approach is more or less a hack but if all else fails. Could later
be dropped or right away.

…ragment

The ViewModel that hosts the search filters logic. It facilitates
the communication with the SearchFragment* and the
SearchFilter*DialogFragment based search filter UI's

…peExtractor's LibraryStringIds class

…g into SearchFragment

There is also a configuration option to choose between different search
UI's