Add RTC get example

Author: pennam

examples/BreakoutRTCGet/BreakoutRTCGet.ino

@@ -0,0 +1,42 @@
+/*
+  Breakout Carrier - BreakoutRTCGet
+
+  The sketch shows how to read the RTC of the PortentaH7 using the Breakout Carrier.
+
+  The circuit:
+   - Portenta H7
+   - BreakOut Carrier
+   - CR2032 Battery
+
+  This example code is in the public domain.
+*/
+#include <Arduino_PortentaBreakoutCarrier.h>
+
+Timestamp utcTime;
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial);
+}
+
+void loop() {
+  // Read the current timestamp from the RTC
+  utcTime = Breakout.RTClock.getTime();
+
+  // Print the data
+  Serial.println(utcTime.getUnixTimestamp());
+  Serial.print("year: ");
+  Serial.println(utcTime.year() + 1900);
+  Serial.print("month: ");
+  Serial.println(utcTime.month() + 1);
+  Serial.print("day: ");
+  Serial.println(utcTime.day());
+  Serial.print("hours: ");
+  Serial.println(utcTime.hour());
+  Serial.print("minutes: ");
+  Serial.println(utcTime.minute());
+  Serial.print("seconds: ");
+  Serial.println(utcTime.second());
+  
+  delay(1000);
+}