[Tagging] Changes + additions: shop= photo, hobby, model

[Andreas Goss]

> Shop=photo changed to remove frames and framing from it.
> Reason.. there is a documented shop=frame so if the shop=photo does
> frames then it should be tagged shop=photo; frame
> I have included that information on the wiki page
> https://wiki.openstreetmap.org/wiki/Tag:shop%3Dphoto

There will always be overlaps. A lot of shops will sell somthing to 
drink, but you don't add ;beverages, because of that.
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