Add building=ruins and natural=shingle

[Don-vip]

building=ruins is now used more than 10k times, used globally, well documented.

Looks like a good candidate for a new "Ruined building" internal preset?

​http://taginfo.openstreetmap.org/tags/building=ruins#map
​http://wiki.openstreetmap.org/wiki/Tag:building%3Druins

Same for natural=shingle

​http://taginfo.openstreetmap.org/tags/?key=natural&value=shingle#map
​http://wiki.openstreetmap.org/wiki/Tag:natural%3Dshingle

[Klumbumbus]

In 10935/josm:

see #13515 - add some tags to validator ignore list

[Klumbumbus]

I fixed the unit test for now. I will remove it from the ignore list when I add it to the preset.

[Klumbumbus]

I think it is enough to just add the value to the existing general building preset.

[Don-vip]

Replying to Klumbumbus:

I think it is enough to just add the value to the existing general building preset.

yep