OSM objects tags to link with Osm.org URL

@ptigrouik suggests a way to link a OSM object from the picture's tags (see the discussion).

I suggest the following standard:

New tag category

The following qualifiers should be added to the presets:

Keys

• osm[node]

  Icon : https://wiki.openstreetmap.org/wiki/File:Osm_element_node.svg

  Label to display on the interface : Linked OpenStreetMap node

• osm[way]

  Icon : https://wiki.openstreetmap.org/wiki/File:Osm_element_way.svg

  Label to display on the interface : Linked OpenStreetMap way

• osm[relation]

  Icon : https://wiki.openstreetmap.org/wiki/File:Osm_element_relation.svg

  Label to display on the interface : Linked OpenStreetMap relation

Values

Accepted values should be OSM IDs, as documented in the wiki https://wiki.openstreetmap.org/wiki/Elements#Common_attributes

Impact on the interface

Example: osm[node]=2085947986would link to https://www.openstreetmap.org/node/2085947986 while clicked

Possible alternative

We could use the standard tag osm|node;way;relation instead of the qualifier. It could therefore apply to the whole picture. But I think we should avoid that. Or save for later the invention of a new dedicated tag for the "objects existing in this picture"?