[Tagging] Approved - Tag:tourism=camp_pitch

[marc marc]

>     Re: "slab=yes/no to show whether there is a slab on the pitch"
>     Is this different than surface=concrete? or surface=paved?
> 
> A bit different, yes.
> Have a look at https://images.app.goo.gl/2qBV3P3R2wc7wmV27

surface=concrete;grass ?

>     Re: "off-ground only" for fires

I think this merits its own separate clarification thread.
there are several non intuitive combinations between the features and 
the corresponding main keys.
for ex does openfire=yes mean that a fire is allowed anywhere or only
on designated leisure=firepit ?

I also find the value "off-ground only" a little long.
off-ground is not enought ?