restore CLI on some consoles

See merge request !23

adding one  photo

See merge request !22

Code reorganization (deletion of some old, useless variables)

See merge request !21

Fixing a compilation error

See merge request !20

+debouncer.h

See merge request !19

OLED display management for displaying IP address in client or access point mode

See merge request !18

Malaurie's work on UI + CLI interface + AccelStepper interface

See merge request !17

Begining of the buttons' code, the button A  and B allows to go forward/backward slowly and fast depending on if the button is held, the button C allow to stop the syringe_pump movement at any time. I still have to add te reset when we hold button C.

The web method style is now divided in two methods, full_style and part_style to avoid changing style that are invisible on the graphical interface

Button throuput or duration work, their sliders too, and I created 2 attributes of web class to be able to refresh different information at different time.

that has been replaced by an attribute of web named exchange