Merge branch 'dev' into 'master'

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

See merge request bohacfr2/apo-sem!1

feat: add better navigation

fix: add const qualifier to renderer

refactor: mark font char functions constant

feat: add dialog window

feat: add wTahoma 13

feat: add support for font family

feat: add support for larger fonts

feat: support unicode, modify font types so no big changes are needed

feat: add text zoom to text viewer

feat: add gui container info to store window create data

feat: add gui container info to store container create data

feat: add list container selected index, padding and colors

feat: add new font with variable width

feat: add list container logic

docs: correct formatting

docs: add code documentation

refactor: move gui elements to gui library