public.js.flight: support adding flights from JSON
public.js.flight: support adding flights from JSON

shadowoneau/skylines,snip/skylines,shadowoneau/skylines,Turbo87/skylines,kerel-fs/skylines,RBE-Avionik/skylines,RBE-Avionik/skylines,TobiasLohner/SkyLines,Turbo87/skylines,RBE-Avionik/skylines,dkm/skylines,snip/skylines,Harry-R/skylines,snip/skylines,kerel-fs/skylines,dkm/skylines,Turbo87/skylines,TobiasLohner/SkyLines,skylines-project/skylines,dkm/skylines,TobiasLohner/SkyLines,skylines-project/skylines,Harry-R/skylines,Harry-R/skylines,skylines-project/skylines,kerel-fs/skylines,shadowoneau/skylines,shadowoneau/skylines,skylines-project/skylines,RBE-Avionik/skylines,dkm/skylines,Harry-R/skylines,Turbo87/skylines