hg: jdk9/sandbox: Adding autconf framework by Torbjörn Granat.

[magnus.ihse.bursie at oracle.com]

Changeset: deb5f1094a8a
Author:    ihse
Date:      2017-02-03 08:50 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/deb5f1094a8a

Adding autconf framework by Torbjörn Granat.

+ common/test/autoconf/TEST.ROOT
+ common/test/autoconf/lookup-a-string.sh
+ common/test/autoconf/no-option.sh
+ common/test/autoconf/test-utils.sh
+ common/test/autoconf/unknown-option.sh