Fixed: Build iOS target, failed.

compiler error:
/usr/lib/haxe/std/neko/_std/sys/io/File.hx:33: characters 20-51 : Assets/defaults.xml: No such file or directory
/Users/guest/github/StablexUI/src/ru/stablex/ui/UIBuilder.hx:125: characters 40-72 : Called from
../../../../Source/Main.hx:58: characters 3-40 : Called from