Add support for Bresser Lightning Sensor and Bresser Air Quality Sensor

[matthias-bs]

See #2140 and #2693

[zuckschwerdt]

Yes, that's what I meant. But they should have the same r_device and output_fields, otherwise this would give duplicate outputs.

[matthias-bs]

Do you mean I should merge both r_device and output_fields? How should I set the device name then?

[zuckschwerdt]

You can use a .name like you already sketched in the README: "Bresser Weather Center 7-in-1, Air Quality PM2.5/PM10"

[matthias-bs]

How about the assignment to data? Can I leave it as it is or do I have to move it out of the conditional code and assign dummy values for unavailable data?

[zuckschwerdt]

The data struct is flexible. I would even use

if (SENSOR_TYPE_WEATHER) { ... decoder_output_data(); return 1;}
else if (SENSOR_TYPE_AIR_PM) { ... decoder_output_data(); return 1;}
else { log... ; return DECODE_FAIL_SANITY;}

[matthias-bs]

All done now.

[zuckschwerdt]

Looks almost perfect now, thanks!

[zuckschwerdt]

Good for merge. Last call for comments ;)

[matthias-bs]

Done (for now)! Thank you!