Merge branch 'dev' into 'master'
Implement first versions of file browser, text viewer and image viewer
See merge request bohacfr2/apo-sem!1
refactor: split imageviewer to more functions and files
feat: add image viewer mode indicator
docs: add code documentation
refactor: split pheripherals to separate library
feat: add mode change to scroll through picture
feat: add zooming to cursor
fix: movement within border underflow of unsigned integer
refactor: add image viewer fields for better control
feat: add basic image viewer loop