Cold restart on quick door reopening

[denis-stepanov]

From documentation:

It is important to note that no latching for ESP8266 RST line was implemented. It takes about 0.7 s from door closure for the module to go to sleep. If the door gets opened again in less than a second from closure, the controller will likely execute a cold restart instead of waking up from sleep. The opening event would be still delivered to a user, but along with a "reboot" message. This situation has been rarely observed in practice, so it is considered a minor issue.

The task would be to review and try to compress in software the time diagram to something below 0.2-0.3 s. If that turns out to be impossible, hardware latching will have to be added.