RFR 8163304: jarsigner -verbose -verify should print the algorithms used to sign the jar

[Sean Mullan]

Looks good. 

> On Oct 19, 2016, at 8:07 PM, Wang Weijun <weijun.wang at oracle.com> wrote:
> 
> Updated at
> 
>   http://cr.openjdk.java.net/~weijun/8163304/webrev.02/
> 
> changes to webrev.01 is at
> 
>  http://cr.openjdk.java.net/~weijun/8163304/webrev.02/interdiff.patch.html
> 
> Thanks
> Max
>