Add automatic red and black night mode for color screens

Default to one hour after sunset through sunrise, using fresh cached GPS or recent direct RF neighbor locations. Provide saved CLI and WebConfig controls with a small integer solar approximation and no additional framebuffer.

examples/simple_sensor/SensorMesh.cpp

@@ -1,4 +1,5 @@
 #include "SensorMesh.h"
+#include <helpers/ui/DisplayNightLocation.h>
 #include <helpers/CLICommandUtils.h>
 #include <helpers/ClientACLCLI.h>
 #include <helpers/ClientACLResponse.h>
@@ -851,6 +852,10 @@ void SensorMesh::handleCommand(uint32_t sender_timestamp, char* command, char* r
 void SensorMesh::onAdvertRecv(mesh::Packet* packet, const mesh::Identity& id,
                               uint32_t timestamp, const uint8_t* app_data,
                               size_t app_data_len) {
+#if defined(MESHCORE_HAS_COLOR_DISPLAY)
+  mesh::ui::observeDisplayNightAdvert(packet, id, self_id, app_data,
+                                     app_data_len, millis());
+#endif
   mesh::Mesh::onAdvertRecv(packet, id, timestamp, app_data, app_data_len);
   _clock_sync.observeVerifiedAdvert(packet, id, timestamp);
 #if MESH_ENABLE_SENSOR_TRACKER
@@ -1519,6 +1524,11 @@ void SensorMesh::loop() {
 #endif
   _cli.loop();
   mesh::Mesh::loop();
+#if defined(MESHCORE_HAS_COLOR_DISPLAY)
+  if (!mesh::morseTimingActive(_radio)) {
+    mesh::ui::refreshDisplayNightLocation(sensors, getRTCClock()->getCurrentTime(), millis());
+  }
+#endif
   // Do not consume sensor/advert/write deadlines during timed Morse capture.
   // USB command service and the physical radio continue on every pass.
   if (mesh::morseTimingActive(_radio)) return;