Tracker role wakeup and sleep cycle when power.is_power_saving true (#2846)

* WIP

* Sleepy sleepy low power tracker

* Sleepy tracker clear

* NRF52 PoC

* Simplify NRF52 "sleep"

* Trackers aren't polite

* Remove unnecessary include

* Removed accidental commit

* Fixed not-so-sleepy T-Beam due to button gpio mask precendence

* Added sleepOnNextExecution for allowing fulfillment of pending messages before shutting down

* Cleanup

* Don't wantResponse for trackers

* Heltec wireless tracker doesn't like the button interrupt (maybe all s3 because user button press doubles as bootloader mode trigger?)

src/platform/esp32/main-esp32.cpp

@@ -200,22 +200,15 @@ void cpuDeepSleep(uint32_t msecToWake)
     esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
 
 #ifdef BUTTON_PIN
-    // Only GPIOs which are have RTC functionality can be used in this bit map: 0,2,4,12-15,25-27,32-39.
-#if SOC_RTCIO_HOLD_SUPPORTED
-    uint64_t gpioMask = (1ULL << config.device.button_gpio ? config.device.button_gpio : BUTTON_PIN);
+
+#if SOC_PM_SUPPORT_EXT_WAKEUP && !defined(HELTEC_WIRELESS_TRACKER)
+    esp_sleep_enable_ext0_wakeup((gpio_num_t)(1ULL << (config.device.button_gpio ? config.device.button_gpio : BUTTON_PIN)), LOW);
 #endif
 
 #ifdef BUTTON_NEED_PULLUP
     gpio_pullup_en((gpio_num_t)BUTTON_PIN);
 #endif
 
-    // Not needed because both of the current boards have external pullups
-    // FIXME change polarity in hw so we can wake on ANY_HIGH instead - that would allow us to use all three buttons (instead of
-    // just the first) gpio_pullup_en((gpio_num_t)BUTTON_PIN);
-
-#if SOC_PM_SUPPORT_EXT_WAKEUP
-    esp_sleep_enable_ext1_wakeup(gpioMask, ESP_EXT1_WAKEUP_ALL_LOW);
-#endif
 #endif
 
     esp_sleep_enable_timer_wakeup(msecToWake * 1000ULL); // call expects usecs