Use flat structure for data

[jpmeijers]

The nested structure for parsed payloads are unnecessary and difficult to use. Please use a flat structure for the parsed fields. Here is an excellent example of a parser for the T1000:
https://www.aeq-web.com/seeed-sensecap-t1000-lorawan-gps-tracker-ttn-payload-decoder/?lang=en

[Wlanfr3ak]

+1

[jruys]

+1 - The LoWTrack app and TTN's own device location reporting don't work with this decoder. The one linked above seems to output a flat structure works fine.

(edit: looks like there's a PR open for this - #1)