feat(arm07): implement uploading images

feat(arm07): use rx not empty as not busy flag

feat(arm07): add exti both edges interrupt function

feat(arm07): implement few commands

feat(arm07): reimplement short/long button press with timer with just one refresh

feat(arm07): reimplement short/long button press via updating timer mutliple times

feat(arm07): add led indication of auto toggle

feat(arm07): implement most

feat: implement large part of arm07

feat(arm06): Init and implement arm06

feat(arm05): init and implement

feat(arm04): rounding

feat(arm04): switch from \r to \n

fix(arm04): dot position when empty digits

feat(arm04): Do arm04

feat(arm03): add capture button

feat(arm03): null timer while button is held

feat(arm03): pin_write uses sets/reset instead f writing to ODR

fix(arm03): pin read

fix(arm03): ..