Add Zimbabwean Gold to the list of currencies

Author: stof

src/Intl/Icu/Resources/currencies.php

@@ -1309,6 +1309,10 @@
     1 => 0,
     2 => 0,
   ),
+  'ZWG' => 
+  array (
+    0 => 'ZWG',
+  ),
   'ZWL' => 
   array (
     0 => 'ZWL',