Simplify all StandardFirmata examples#455

Open

d-a-v wants to merge 4 commits intofirmata:mainfrom d-a-v:commoncode

+871-4,633

Commits on May 17, 2020

Commits on May 19, 2020

remove redundant code
d-a-v
committed

Commits on May 30, 2020

Merge branch 'master' into commoncode
d-a-v
committed