* Add onPause\onResume persistence to searchView. Fixes issue #3627
* New controller subclass with built-in SearchView support
* Implement new SearchableNucleusController in SourceController
* Add query to BasePresenter (for one field it is not worth create a subclass in my opinion), convert BrowseSourceController to inherit from SearchableNucleusController
* move to flows to fix an issue in GlobalSearch where it would trigger the search multiple times
* Continue conversion to SearchableNucleusController
* Convert LibraryController, convert to flows, Known ISSUE with empty string being posted after setting the query upon creation of UI
* Fix issues with the post being tide to the SearchView queue which is not processed until shown. Add COLLAPSING state capture which should wrap this up.
* refactoring & enforce @StringRes for queryHint
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