[Tagging] Restaurant delivery, takeaway, and no seating

[Katie Filbert]

Is there a standard way of tagging restaurants or fast food places, as having:

1) no seating
2) delivery
3) takeaway

For #1, I suggest seating=no    (perhaps this tag could also be used
with seating=outdoors, if the place has outdoor seating)

For #2, I suggest delivery=yes

For #3, I suggest takeaway = yes (this is used by Mapzen POI collector)

Do these seem like reasonable suggestions?  or is there a better (or
more standard) way of tagging these attributes?

-Kate