Add existing code: Power consumption test cases and Semaphore power scheduler skeleton

example/advanced/Power_Measurements/LightSensorsDaylight/LightSensorsDaylight.ino

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+#include "Dezibot.h"
+
+Dezibot dezibot;
+
+void setup() {
+  dezibot.lightDetection.begin();
+  //dezibot.motion.detection.end();
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  // Wait for Serial to init
+  while (!Serial) {
+    ;;
+  }
+  delay(1000);
+  // Test if SFH325 (Q3) is working correctly
+  char light_value = dezibot.lightDetection.getValue(DL_FRONT);
+  if (light_value != UINT16_MAX) {
+    Serial.printf("Light detection seems to be working (detected value: %d). Starting measurements...\r\n", light_value);
+  } else {
+    Serial.printf("Light detection does not seem to be working correctly (detected value: %d).\n",light_value);
+    exit(0);
+  }
+  Serial.println("Killing Serial peripheral now to not influence anything. Goodbye!");
+  delay(1000);
+  Serial.flush();
+  Serial.end();
+  delay(1000);
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  dezibot.lightDetection.getValue(DL_FRONT);
+  delay(10);
+}