* SensorManager: now can influence advert lat/lon, new custom name:value pairs for custom settings (eg, gps on/off)

* companion: new CMD_GET_CUSTOM_VARS, CMD_SET_CUSTOM_VAR
* T1000e: now supports "gps" custom setting (value "0" or "1")

examples/companion_radio/NodePrefs.h

@@ -6,7 +6,6 @@
 struct NodePrefs {  // persisted to file
   float airtime_factor;
   char node_name[32];
-  double node_lat, node_lon;
   float freq;
   uint8_t sf;
   uint8_t cr;