[Android] Don't require camera, autofocus

Don't require autofocus because that prevents the app from appearing in
Google Play Store for some devices.

Don't require camera for the same reason but also because camera/video
is not a mandatory feature of the app, it's merely likely very
desirable.

android/sdk/src/main/AndroidManifest.xml

@@ -14,10 +14,10 @@
   <uses-feature android:glEsVersion="0x00020000" android:required="true" />
   <uses-feature
       android:name="android.hardware.camera"
-      android:required="true" />
+      android:required="false" />
   <uses-feature
       android:name="android.hardware.camera.autofocus"
-      android:required="true" />
+      android:required="false" />
 
   <application
       android:allowBackup="true"