2019 Emoji Update (#1261)

* Updated EmojiCompat support:
- Fonts are now updatable
  - Old fonts will automatically be deleted
- Noto Emoji is supported
- New library version

* It will now (hopefully) only look through the emoji font directory if it exists...

* Added a noto emoji icon for Android <=6;
Font files and their version relation are only loaded once now.

* Small bugfix for the noto emoji icon

* Changed the initial size of the existingFontFiles list to a constant value

* Bugfixes
Old files are now (really) deleted
The latest version is used as the actuall font
Further optimizations

* Emoji font update triggers restart dialog

* Resized the Noto icon;
(Hopefully) fixed EmojiCompat (again)

app/src/main/res/layout/dialog_emojicompat.xml

@@ -20,6 +20,10 @@
             android:id="@+id/item_twemoji"
             layout="@layout/item_emoji_pref" />
 
+        <include
+            android:id="@+id/item_notoemoji"
+            layout="@layout/item_emoji_pref" />
+
         <include
             android:id="@+id/item_nomoji"
             layout="@layout/item_emoji_pref" />