Add media kit and media section page

[ricco386]

Media section should contain some information how to officially contact organizers about media coverage, media tickets, etc.

Media kit should contain:

logo
logo grayscale
logo with text square
logo with text square grayscale
logo with text rectangle
logo with text rectangle grayscale

all files should be in vectors (svg and pdf) and also high resolution png, so it is suitable for print.