Enable easy lifecycle prefix tagging

[daganzdaanda]

Hi!

The lifecycle prefix namespace is described here: ​https://wiki.openstreetmap.org/wiki/Lifecycle_prefix
It would be great if JOSM could help in adding, changing and removing these prefixes.

But I'm not sure how the UI should be. There are several possible situations when one might want a little help to find the right prefix:

• add a lifecycle-prefix to existing tags
• change an existing lifecycle-prefix on an existing tag
• remove an lifecycle-prefix
• add a new tag with a lifecycle-prefix

Maybe there could be an option in the right-click menu when you select a line in the tags ("Merkmale") window, or a button on that window? Either way, a dialog window with a selection of prefixes could pop up.
But maybe there is a more intuitive way for this?

The values I would include would be

proposed: ~26,000 in taginfo (quick sum by me)
construction: ~11,000 in taginfo
disused: ~53,000 in taginfo
abandoned: ~176,000 in taginfo
demolished: ~6200 in taginfo
removed: ~4300 in taginfo
(I'm not sure about the definition of historic: and was: which are also used a lot)

What do you think about this idea?

[Klumbumbus]

Closed as duplicate of #16093.