Fix crashes on custom skins due to extension-less file lookups
Fix crashes on custom skins due to extension-less file lookups

peppy/osu,NeoAdonis/osu,peppy/osu,2yangk23/osu,johnneijzen/osu,NeoAdonis/osu,UselessToucan/osu,ppy/osu,ppy/osu,UselessToucan/osu,UselessToucan/osu,peppy/osu-new,johnneijzen/osu,EVAST9919/osu,NeoAdonis/osu,EVAST9919/osu,ppy/osu,peppy/osu,smoogipoo/osu,smoogipoo/osu,2yangk23/osu,smoogipoo/osu,smoogipooo/osu