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 textviewer to more functions and files

feat: add correct error messages for text viewer and image viewer

docs: correct formatting

docs: add code documentation

feat: use pheripherals in text viewer

fix: text movement

feat: add full vertial scroll command

refactor: move text view commands to text viewer

feat: add text viewer main

feat: add gui text component

feat: add gui text view component

feat: add gui line component

feat: add base gui functions

feat: add keyboard and rotation encoders constants

feat: add renderer

feat: add font utils