Add bypass option for classes to recursive and reflective EqualsBuilder

String are now compared with internal data (hash and char[]). But sometimes hash value is not initialized, this is probably a cache for the hashcode. So the comparison fails even if the char[] content is the same.
You should add the bypass for basic JRE classes (String, Datetime types, etc.)

reported at https://github.com/apache/commons-lang/pull/202#issuecomment-333874925