Add png signs

...7c3-locations-schilderhalter-eg-eingang-m7-assemblies.png

...s-schilderhalter-eg-eingang-m7-backside-speaker-press.png

...-schilderhalter-eg-eingang-m7-chaospatinnen-kidsspace.png

...37c3-locations-schilderhalter-eg-eingang-m7-cloakroom.png

...ng/37c3-locations-schilderhalter-eg-eingang-m7-dealer.png

..._png/37c3-locations-schilderhalter-eg-eingang-m7-exit.png

signs_png/37c3-locations-tafeln-1og-foyer-hall-x-oben.png

signs_png/37c3-locations-tafeln-1og-foyer-hall-x-unten.png

signs_png/37c3-locations-tafeln-1og-gaderobe-hall-1-oben.png

...s_png/37c3-locations-tafeln-1og-gaderobe-hall-1-unten.png

signs_png/37c3-locations-tafeln-2og-foyer-hall-1-oben.png

signs_png/37c3-locations-tafeln-2og-foyer-hall-1-unten.png

signs_png/37c3-locations-tafeln-eg-eingang-oben.png

signs_png/37c3-locations-tafeln-eg-eingang-unten.png

signs_png/37c3-locations-tafeln-eg-treppe-aufzug-oben-2.png

signs_png/37c3-locations-tafeln-eg-treppe-aufzug-oben.png

signs_png/37c3-locations-tafeln-eg-treppe-aufzug-unten-2.png

signs_png/37c3-locations-tafeln-eg-treppe-aufzug-unten.png

signs_png/37c3-locations-tafeln-eg-treppe-foyer-oben.png

signs_png/37c3-locations-tafeln-eg-treppe-foyer-unten.png