RFR: version specific class file parser and verifier fixes

[John Rose]

Looks good.

> On Jul 18, 2018, at 11:43 AM, Harold David Seigel <harold.seigel at oracle.com> wrote:
> 
> Hi,
> 
> Please review this LWorld change to ignore the ValueTypes attribute and value type specific access flags for class file versions < 55.  This fix also includes changes to the verifier to throw VerifyError exceptions for withfield and defaultvalue opcodes for class file versions < 55.
> 
> Open Webrev: http://cr.openjdk.java.net/~hseigel/lworld.cfp_verf/webrev/
> 
> The changes were tested with various tier1 - tier5 Mach5 tests on Linux and Mac.
> 
> Thanks, Harold
>