RFR: [9] 8043340: [macosx] Fix hard-wired paths to JavaVM.framework

[David DeHaven]

Build systems take such a long time work on...

I've changed the logic, I think for the better. I hijacked --with-sysroot, SYSROOT is set to the SDK path and I stuffed the -iframework argument alongside the -isysroot arg in SYSROOT_CFLAGS and it works very nicely. Now the only change that's peppered throughout the forest is adding $(MACOSX_SDK_PATH) to the hard coded JavaVM.framework and ApplicationServices.framework paths, not to mention everything gets -isysroot/-iframework and not just the parts that needed JavaVM or ApplicationServices. The added SYSROOT logic is Mac specific so other platforms should be unaffected, JPRT should tell otherwise if not...

I also added two configure args:
  --with-macosx-sdk       name of Mac OS X SDK to build with, e.g., macosx10.7
                          [macosx]
  --with-macosx-sdk-path  specify path of Mac OS X SDK to build with [probed]

Please note that this version is against jdk9-dev with the following patches imported from other forests:
hotspot:
JDK-8043164 (jdk9/hs)

jdk:
JDK-8042440 (jdk9/client)
JDK-8043646 (jdk9/client)
JDK-8003900 (jdk9/client)


Updated patches:
http://cr.openjdk.java.net/~ddehaven/8043340/v1/base
http://cr.openjdk.java.net/~ddehaven/8043340/v1/hotspot
http://cr.openjdk.java.net/~ddehaven/8043340/v1/jdk

-DrD-