Java: add permits relation to dbscheme (sealed classes)

Author: yo-h

java/ql/src/config/semmlecode.dbscheme

@@ -479,6 +479,11 @@ implInterface(
   int id2: @interface ref
 );
 
+permits(
+  int id1: @classorinterface ref,
+  int id2: @classorinterface ref
+);
+
 hasModifier(
   int id1: @modifiable ref,
   int id2: @modifier ref