[Tagging] Draft Additions to camp_site

[Warin]

Done. Thanks .. I knew there was one out there somewhere. I think 
amenity=dump_station needs to be redone, the reasons for its rejection 
by some have been outdated by the quoted tags evolving over time making 
amenity=dump_station essential.

.  On 2/02/2015 9:29 PM, Dave Swarthout wrote:
> I like what you've done with this. I would suggest that for waste 
> disposal, i.e., sewage, consider adding amenity=dump_station to the 
> list of optional tags. Although Taginfo shows only about 100 instances 
> of the tag so far (including variations like dump_station=yes/no), 
> Dump Station, etc.) , this term describing a facility for dumping of 
> RV holding tanks is very common in the U.S.
>
>