Add date formatter for localized date and time

Author: rachelmcr

WooCommerce/Classes/Extensions/DateFormatter+Helpers.swift

@@ -154,4 +154,15 @@ extension DateFormatter {
         formatter.setLocalizedDateFormatFromTemplate("hh:mm a")
         return formatter
     }()
+
+    /// Date formatter used for creating a **localized** date and time string.
+    ///
+    /// Example output in English: "Jan 28, 2018, 11:23 AM"
+    ///
+    public static let dateAndTimeFormatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.setLocalizedDateFormatFromTemplate("MMM d yyyy hh:mm a")
+
+        return formatter
+    }()
 }