New utility marker preset

[francois.lacombe]

Dear maintainers,

A new utility markers tagging has recently been reviewed on wiki and changes a bit established tagging.
​https://wiki.openstreetmap.org/wiki/Proposed_features/Utility_markers_proposal

Could you please update presets as follow:

• pipeline=marker, power=marker, cable=marker are no longer used
• Update pipeline marker preset to involve marker=post,stone,pedestal,ground,aerial,plate + utility=*

​https://wiki.openstreetmap.org/wiki/Key:marker
​https://wiki.openstreetmap.org/wiki/Key:utility

I didn't find any more existing preset regarding markers, but any other should be updated as upside.

Users should be warned with new validation rules:

• Usage of pipeline=marker is no longer encouraged, replace it with marker=* + utility=*
• Usage of cover=* with marker=* is not valid
• marker=* and voltage, pressure, diameter, substance are set incompatible and shouldn't be used on the same object

Many thanks in advance to take care of this, all the best