Regrouping of jdk modules

[Mandy Chung]

There are 40+ tools in the JDK, each of which needs to be a different
module since a module only allows a single entry point in the current
implementation.  I implemented a workaround in the launcher and add
a special entry point in sun.launcher.LauncherHelper just for jdk tools
to use so that multiple tools can be grouped in the same module.
With this launcher change along with some other regrouping of the jdk
modules, there are now 56 jdk modules.  The list is at:
    http://cr.openjdk.java.net/~mchung/jigsaw/jdk-modules-list.txt

Webrev:
    http://cr.openjdk.java.net/~mchung/jigsaw/jdk-modules/

Alan,
    Can you review this set of changes?

Summary of the jdk modules:
1. corba tools (orbd, tnameserv, servertools, and idlj) are included in
the corba module.   idlj is a development tool and we may need to
separate it from the corba runtime module.

2. rmid and rmiregistry are included in the rmi module as they are
runtime tools.

3. kinit, klist, ktab are kerberos-related tools and included in the
kerberos module

4. langtools has 7 modules (javac, apt, mirror, compiler, javadoc,
javah and javap).

5. JRE tools will be in jdk.tools.jre and all other tools are grouped in
jdk.tools.base, , jdk.tools.jaxws and jdk.tools.

6. Move the JMX RMI-IIOP connector and the JNDI cosnaming provider
to corba module since they depend on corba to be present anyway.

7. Include prefs in the desktop module

8. com.sun.security.auth.callback.Dialog is grouped with the desktop
module.

9. Group snmp in the management module

10. Merge all jaxp related modules into one single module

11. Include the JNDI providers (except cosnaming provider) in the
jndi module.

12. Merge JAAS and SASL into the jaas module

13. A new jdk.ext module to include com.sun.* APIs (httpserver, sctp)
when appropriate.

Mandy