Merge branch 'dev' into 'master'

Implement first versions of file browser, text viewer and image viewer

See merge request bohacfr2/apo-sem!1

docs: add code documentation

refactor: split pheripherals to separate library

fix: add packed attributes to needed structs

refactor: add option to clear display without render

fix: struct constants

fix: put correct max color constants

feat: add display utils functions