add bunch of logos for presentation research-visit-pitches-2023

...ery/Skyrmion_and_antiskyrmion_magnetic_configurations.jpg

fig/judft/profile-pictures/profile-picture-bluegel.jpeg

fig/judft/profile-pictures/profile-picture-ruess.png

fig/logos/google-scholar/google-scholar-logo.pdf

fig/logos/google-scholar/google-scholar-logo.svg

fig/logos/juDFT/juKKR/juKKR_logo_square_new.jpg

fig/logos/logos.tex

fig/logos/mastodon/mastodon-logo.pdf

fig/logos/mastodon/mastodon-logo.svg

fig/logos/orcid/orcid-id-icon-logo.pdf

fig/logos/orcid/orcid-id-icon-logo.svg

fig/logos/python/python-logo-inkscape-notext-noshadow.svg

fig/logos/python/python-logo-inkscape-notext.svg

fig/logos/python/python-logo-inkscape.svg

fig/logos/python/python-logo-notext-noshadow.pdf

fig/logos/python/python-logo-notext.pdf

fig/logos/python/python-logo.pdf