Add ability to upload custom poster art to library media

[gu5gus 1]

Many times there is not art available at the usual places that Emby looks for it, but we have the correct art image files. In the Edit Metadata dialog, add a button to upload custom art.

[GrimReaper 5001]

7 minutes ago, gu5gus said:

In the Edit Metadata dialog, add a button to upload custom art.

Isn't it there already? 

[crusher11 1206]

Yes.