Update Entypo in Photon

[ndugger]

The photon icon set is missing some "newer" icons that have been added in Entypo.

The latest additions seem to have been "Recently added — 5/3, 2015", so I see no reason as to why Photon shouldn't have them.

I'd really appreciate it, as I could really use that mouse-pointer icon...

Thanks!

I've done some hacky nonsense to get my icons to an updated set of entypo, so I'm no longer in a rush for you to do so, but this would still be a nice feature for others.