(First real try at writing meaningful C++ but it seems to work.)
Allows sending JSON Position data from MQTT broker for broadcast to a LORA mesh via gateway device.
The new type is "sendposition". Valid envelope looks like:
{
"sender": "someSender",
"type": "sendposition",
"payload": {
"latitude_i": 399600000,
"longitude_i": -862600000,
"altitude": 100
}
}
This complements the "sendtext" type envelope.
case Portnum_POSITION_APP adjusted so the various options allways get encoded into JSON as long as lat and long are present. There are circumstances where timestamp, time, or altitude might be missing and this causes silent failures of JSON encoding..
arduinoGP