Many code editors are set to do this automatically now, so it ends up being annoying to scrape back out of commits to keep them easily reviewable.
Also added '.DS_Store' and 'build' entries to .gitignore
Allows to not allocate a GPIO for display reset: some may have that pin tied or attached to a Power management IC.
Supersedes PR from @usedbytes doing same but only for IL9341, this is for all supported displays.