Thermostat with PID controller

Development
96

Hi adrien.b,

the autotune never worked correctly and, to my knowledge, was created for brewing.
I see two options currently:

  1. You use the version in the master branch with the values @MudiStar suggested.
  2. You use the version in the dev branch with the values @fabian.n suggested.

As the heating period starts now, I will try both out and report my findings.