Link to owner query from user name in ChangeTable2

The link to change owners' dashboards was removed a while ago
from the ChangeTable2.  Reinstate an owner link but this time
link it to a search for other changes owned by that user.  The
original link used the accountId, this time use the fullname
instead.

Change-Id: Ie23094416b4bfd2d9c522253df9847833c297ee2

gerrit-common/src/main/java/com/google/gerrit/common/PageLinks.java

@@ -59,6 +59,10 @@ public class PageLinks {
     return "/admin/projects/" + p.get() + ",access";
   }
 
+  public static String toAccountQuery(final String fullname) {
+    return "/q/owner:\"" + KeyUtil.encode(fullname) + "\"," + TOP;
+  }
+
   public static String toAccountDashboard(final AccountInfo acct) {
     return toAccountDashboard(acct.getId());
   }