[Tagging] Feature Proposal - RFC - sport:four_square

[Matthew Woehlke]

When creating https://www.openstreetmap.org/way/828950465, I wasn't sure 
how to tag it... it's a somewhat generic paved lot for recreation, but 
it *does* have markings for four square, which is not unusual for such 
areas.

We do not have an "official" tag for that, although even so there are 
almost 400 extant uses (some sport=four_square, many fewer 
sport=foursquare).

Shall we make this an official value?

https://wiki.openstreetmap.org/wiki/Proposed_features/sport%3Dfour_square

-- 
Matthew