render bicycle=permissive footway like bicycle=yes footway

[matkoniecz]

Effect is basically the same in practice (not sure is right of way in UK considered as important part?), but highway=footway bicycle=yes has special rendering and highway=footway bicycle=permissive no.

See https://www.openstreetmap.org/way/973317334

See https://www.openstreetmap.org/way/26484615

(rendering changes on edge of park as bicycle=yes is result of park rules)

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Triggered by https://www.facebook.com/groups/osmpolska/posts/4520494097994005/

[michaelblyons]

I also would like this.

[Phyks]

Should be done in 9ff385c.