OMT schema: define OSM keys to be used as POI class #851
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closes #849
The effect of this PR is:
subclass: parking
subclass: parking
subclass: hairdresser
subclass: hairdresser
The OpenMapTiles schema is very vague about what is a class:
However,
shopis listed as an example for the class andamenityis not.The MapTiler OMT vector data uses hairdresser as class:
subclass: parking
subclass: parking
subclass: hairdresser
subclass: hairdresser