Gps cleanup and powersave (#2807)

* Refactor GPS to not probe if pins not defined

* Use Named Constructor to clean up code

* Move doGPSPowerSave to GPS class

* Make sure to set GPS awake on triple-click

* Cleanup and remove dead code

* Rename GPS_PIN_WAKE to GPS_PIN_STANDBY

* Actually put GPS to sleep between fixes

* add GPS_POWER_TOGGLE for heltec-tracker and t-deck

* Change GPS_THREAD_INTERVAL to 200 ms

* More dead code, compiler warnings, and add returns

* Add Number of sats to log output

* Add pgs enable and triple-click config

* Track average GPS fix time to judge low-power time

* Feed PositionModule on GPS fix

* Don't turn off the 3v3_s line on RAK4631
when the rotary is present.

* Add GPS power standbyOnly option

* Delay setting time currentQuality
to avoid strange log message.

* Typos, comments, and remove unused variable

* Short-circuit the setAwake logic on GPS disable

* heltec-tracker 0.3 GPS power saving

* set en_gpio to defined state

* Fix fixed_position logic with GPS disabled

* Don't process GPS serial when not isAwake

* Add quirk for Heltec Tracker GPS powersave

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: mverch67 <manuel.verch@gmx.de>
Co-authored-by: Manuel <71137295+mverch67@users.noreply.github.com>

variants/lora_relay_v2/variant.h

@@ -164,8 +164,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
 #define ST7735_SDA (39) // actually spi MOSI
 #define ST7735_SCK (37) // actually spi clk
 
-#define PIN_GPS_WAKE 36   // Just kill GPS power when we want it to sleep?  FIXME
-#define GPS_WAKE_ACTIVE 0 // GPS Power output is active low
+#define PIN_GPS_EN 36   // Just kill GPS power when we want it to sleep?  FIXME
+#define GPS_EN_ACTIVE 0 // GPS Power output is active low
 
 // #define LORA_DISABLE_SENDING // The board can brownout during lora TX if you don't have a battery connected.  Disable sending
 // to allow USB power only based debugging