Extract time into its own example

Author: sebromero

examples/GetTime/GetTime.ino

@@ -0,0 +1,28 @@
+#include "ArduinoCellular.h"
+
+ArduinoCellular cellular = ArduinoCellular();
+
+void setup(){
+    Serial.begin(115200);
+    while (!Serial);
+    cellular.begin();
+
+    if(!cellular.enableGPS()){
+        Serial.println("Failed to enable GPS");
+        while(true); // Stop the program
+    }
+    delay(2000); // Give the modem some time to initialize
+}
+
+void loop(){
+    Location location = cellular.getGPSLocation(10000);
+
+    if(location.latitude == 0.0 && location.longitude == 0.0){
+        Serial.println("Failed to get GPS location");
+    } else {
+        Time time = cellular.getGPSTime();
+        Serial.print("Current time (ISO8601): "); Serial.println(time.getISO8601());
+    }
+    
+    delay(10000);
+}