[14] RFR: 8233228: Support named curves for all disabledAlgorithms

[Anthony Scarpino]

I've updated the webrev to address many of the comments.  In particular 
adding checks when keys given directly.  Also, the changing from 
legacyEC hardcoded list to a security property jdk.disabled.namedCurves.

https://cr.openjdk.java.net/~ascarpino/8233228/webrev.01/

Tony