Please Review fix for reduced value parser 8024076

[roger riggs]

Please review this fix for parsing two digit years in an Chronology.

The webrev includes Stephen's proposed alternate method that provides
a ChronoLocalDate as the base date.

http://cr.openjdk.java.net/~rriggs/webrev-two-digit-8024076/

Thanks, Roger

p.s. the design issue raised in the comments has been filed as [2] : 8025828

[1]https://bugs.openjdk.java.net/browse/JDK-8024076
[2]https://bugs.openjdk.java.net/browse/JDK-8025828