Add onBackPressed method

app/src/main/java/net/pokeranalytics/android/ui/fragment/components/PokerAnalyticsFragment.kt

@@ -25,4 +25,9 @@ open class PokerAnalyticsFragment: Fragment() {
 		return realm
 	}
 
+	/**
+	 * Method called when the activity override onBackPressed and send the information to the fragment
+	 */
+	open fun onBackPressed(){}
+
 }