nut-scanner: add support for Home Assistant config format

[aquette]

Add "-H, --disp_home_assistant_conf" to display nut-scanner results in the Home Assistant format

[aquette]

Additional notes:

• Example output with a USB device:
  • ups.conf format:

[nutdev1]
driver = "usbhid-ups"
port = "auto"
vendorid = "0463"
productid = "FFFF"
product = "Protection Station"
serial = "XXXXXXX"
vendor = "EATON"
bus = "001"
device = "015"
###NOTMATCHED-YET###bcdDevice = "0100"

• Home Assistant format

devices:
  - name: nutdev1
    driver: usbhid-ups
    port: auto
    config:
    - vendorid = "0463"
    - productid = "FFFF"
    - product = "Protection Station"
    - serial = "XXXXXXX"
    - vendor = "EATON"
    - bus = "001"
    - device = 015
    - ###NOTMATCHED-YET###bcdDevice = 0100

• I'm considering the trimming of the USB outputs. bcdDevice and device are polluting, not useful or even blocking startup, for example
  Ref: nut-scanner USB: disable some output results #2221

[frenck]

As an FYI, same response as on Discord; this is not something I'm considering adding to the add-on.

../Frenck

[jimklimov]

@frenck : I was not in on that chat, would you please elaborate here as to why? :)

[aquette]

privet @jimklimov
in fact, this was just a misplaced short-term hotfix to a wider UX/integration problem. Hence, closing.

The fruitful discussions with @frenck led me to rethink the whole, and revive the old HAL integration, into a refreshed version (over MQTT, homekit, ...).
I've created a SmartNUT project to document and track that, and will definitely appreciate your support on this one old chap ;)
Also see #2224