* Board ID as build flag
When using IDE or `arduino-cli board list`, show full board name and FQBN
```
$ arduino-cli.exe board list
Port Protocol Type Board Name FQBN Core
xxx.xxx.x.xxx network Network Port LOLIN(WEMOS) D1 R2 & mini esp8266com:esp8266:d1_mini esp8266com:esp8266
```
Also add `description` field to the mDNS response containing the
original `{build.board}` string value.
resolve#7759
* does not work with recent ide (?)
* fixup! does not work with recent ide (?)
06f34ed566