vfd: extend vfd_setState function with direction enum (default fwd)
main: reduce log output from buzzer task
config: use mos1 as vfd_FWD output
control:
add MANUAL state: motor can be controlled via preset buttons
adjust code slightly to support new state (also see updated
function-diagram)
- move code from testing task to control.cpp
- outsource functions for initializing display and encoder
- delete testing code
- add two display pages (current distance and counter)
- run handle functions for each button
