added Olomouc avatars

generator/static/images/badges/Olomouc-kandidat-dark.png

generator/static/images/badges/Olomouc-kandidat-light.png

generator/static/images/badges/Olomouc-volim-dark.png

generator/static/images/badges/Olomouc-volim-light.png

generator/static/js/avatar/external_ui.js

generator/static/js/avatar/internal_ui.js

generator/static/js/avatar/template.js

generator/templates/avatar_internal.html

generator/templates/avatar_public.html

generator/views/generator.py