DIVOC 2020: Add signs as png files

content/events/divoc_2020/signs/divoc-notices-abstand.png

content/events/divoc_2020/signs/divoc-notices-infodesk.png

content/events/divoc_2020/signs/divoc-notices-lounge-2.png

content/events/divoc_2020/signs/divoc-notices-lounge-3.png

content/events/divoc_2020/signs/divoc-notices-lounge.png

content/events/divoc_2020/signs/divoc-notices-morgen.png

content/events/divoc_2020/signs/divoc-notices-noc.png

content/events/divoc_2020/signs/divoc-notices-poc.png

.../events/divoc_2020/signs/divoc-notices-rabbit-rabbyte.png

content/events/divoc_2020/signs/divoc-notices-tuwat.png

content/events/divoc_2020/signs/divoc-notices-whoc.png