parking/orientation: update and deprecate key

[tordans]

This PR is for next week when the voting was officially concluded. — Update: The proposal was accepted. All related documentation is updated and the manual data migration is on it's way.

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Following the successful street parking revision proposal https://wiki.openstreetmap.org/wiki/Proposed_features/street_parking_revision#Summary:_What_is_proposed,_changed_and_deprecated? the tag for orientation on separately mapped parking spaces is now just orientation.

Regarding separately mapped parking areas, (…)
parking:orientation=* will be deprecated and replaced by orientation=*(…)

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I added duplicated the deprecation rule for orthogonal to handle both the old and new key because I was not sure about the order (cardinality) of the rules / if the key deprecation would then in turn still trigger the value deprecation. Having all three should not be an issue I guess.

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FYI @SupaplexOSM

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Update:

• Decide how to handle the folder. It is fields/parking/orientation.json right now. Following the tag convention, we should move it to fields/orientation.json. However, maybe we should move all parking related fields to this folder instead (especially fields/parking.json? I think that would be a good idea so its to see the parking-scope in the preset-jsons.

[tyrasd]

Decide how to handle the folder.

I'd prefer if a <key>:<subkey> tag actually end up as a field in key/subkey.json. Yes, it would make sense to also include other related tags in the same directory, but these should then get a <key>_<discriminator>.json file name. Hmm… maybe here something like orientation_parking.json could work?!

[tordans]

@tyrasd I move the field to fields/orientation/orientation_parking.json. I could move it to fields/orientation_parking.json, if you prefer.

I also updated the PR description, since the proposal is accepted and all docs are updated. The data migration is already going strong.

[Zaczero]

This tag is now officially deprecated but iD keep on using it. What's the blocker here?

[tordans]

@tyrasd I think this can be merged.

We where asked about this recently osmberlin/parkraum.osm-verkehrswende.org#30 (comment)