add flash audio and video mime types

Author: basz

src/AssetManager/Service/MimeResolver.php

@@ -150,6 +150,10 @@ class MimeResolver
         'etx'      => 'text/x-setext',
         'exe'      => 'application/x-msdos-program',
         'ez'       => 'application/andrew-inset',
+        'f4a'      => 'audio/mp4',
+        'f4b'      => 'audio/mp4',
+        'f4v'      => 'video/mp4',
+        'f4p'      => 'video/mp4',
         'fb'       => 'application/x-maker',
         'fbdoc'    => 'application/x-maker',
         'fch'      => 'chemical/x-gaussian-checkpoint',