Global Search (#849)

* Global Search

* Cards are now independent of design by use of recycler.

* Added local

* Some attribute fixes + moved onclick to controller.

* Lots of improvements to code

* Reversed some stuff. Thanks API 16

* Code fixes

* Performance improvements

* Moved adapter creation to constructor

* Small changes

* Removed sources settings from settings menu. Added OnChangeListener in catalogue. Made setting icon visible if room.

* bug fix

* Code review part uno

* Code review part uno-2

* Single recycler approach

* Add last source used

* Fix scroll state and some layout issues

* Fix wrong item binding

* Use data class for items

* Calculate item position and count while binding

* Fix background color with slices

* Reuse slices. Fix card background. Flatten constraint layout

* Fix global_search scroll issue

* Store last state with global search

* Minor changes

* Remove catalogue toolbar spinner. Persist catalogue across process restarts

* Save view state of recycler views. Set toolbar title with current query

app/src/main/res/menu/catalogue_main.xml

@@ -0,0 +1,16 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".CatalogueListActivity">
+
+    <item
+        android:id="@+id/action_search"
+        android:title="@string/action_search"
+        android:icon="@drawable/ic_search_white_24dp"
+        app:showAsAction="collapseActionView|ifRoom"
+        app:actionViewClass="android.support.v7.widget.SearchView"/>
+
+    <item android:id="@+id/action_settings"
+        android:title="@string/pref_category_sources"
+        android:icon="@drawable/ic_settings_white_24dp"
+        app:showAsAction="ifRoom"/>
+</menu>

app/src/main/res/menu/catalogue_new_list.xml

@@ -0,0 +1,11 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".CatalogueListActivity">
+
+    <item
+        android:id="@+id/action_search"
+        android:title="@string/action_search"
+        android:icon="@drawable/ic_search_white_24dp"
+        app:showAsAction="collapseActionView|ifRoom"
+        app:actionViewClass="android.support.v7.widget.SearchView"/>
+</menu>