[Tagging] new Key proposal: landcover

[M∡rtin Koppenhoefer]

I know we already talked about this, but actually no actions followed ;-)

What is the current feeling for a new key "landcover"? Could resolve
many issues, as often landuse is a mixture of actual "use" and
"coverage".
Seems like there is already landcover=tree in the database:
http://taginfo.openstreetmap.de/keys/landcover

other values might be

* sand
* asphalt
* grass
* scrubs
* rock
* ice
* lichen

<add your proposed values here>

cheers,
Martin