omni: add default extra font package

Based on template from DU
https://github.com/DirtyUnicorns/android_vendor_du/commit/c5b22c8ffecb8497cc096c135a863b4c8324853f

Thanks to them for the launcher icon too

Noto fonts are from google
https://www.google.com/get/noto/

GoogleSans is from Pixel2
SourceSansPro is from Adobe

Change-Id: I1440d6c51ee25c7e465e83b2f4ec5099f03e741d
diff --git a/fonts/AndroidManifest.xml b/fonts/AndroidManifest.xml
new file mode 100644
index 0000000..8823c56
--- /dev/null
+++ b/fonts/AndroidManifest.xml
@@ -0,0 +1,8 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.omnirom.fonts">
+
+    <application android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:hasCode="false"/>
+
+</manifest>