add CSV report for earlyaccess codes

booking.earlyaccess_admin.inc

@@ -108,7 +108,7 @@ function booking_earlyaccess_generate_codes() {
  * @see https://stackoverflow.com/questions/1846202/php-how-to-generate-a-random-unique-alphanumeric-string
  * Requires PHP7
  */
-function booking_getToken($length){
+function booking_getToken($length) {
   $token = "";
   $codeAlphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
   //$codeAlphabet.= "abcdefghijklmnopqrstuvwxyz";
@@ -120,4 +120,12 @@ function booking_getToken($length){
   }
 
   return $token;
+}
+
+
+/**
+ * Function to generate csv of early access codes for the current event
+ */
+function booking_earlyaccess_csv_report() {
+
 }