Update the Java Bidi part of the Unicode tools from 7.0

[markusicu]

Turning a UTC action item into a Unicode Tools issue.

From the UTC-149 minutes:

B.12.3.1 Working Draft of Proposed Update UAX #9, Unicode Bidirectional Algorithm [Iancu, L2/16-366]
...
Further discussion of reference implementation.
[149-A47] Action Item for Mark Davis, Laurențiu Iancu: Update the Java Bidi part of the Unicode tools from 7.0 to 9.0.

This got later reassigned to Tim Brandall & Lee Collins but remained open. Moving it here as part of a stale-action-items cleanup.

[markusicu]

@macchiati is this “only” in the JSPs? Or does this affect the generation of bidi conformance test data?

@Manishearth FYI