RFR: JDK-8135060: Stop building Xcode projects in install build

[Erik Joelsson]

Hello,

Here is a patch to the top repo with some functional improvements to the 
common functionality in the makefiles. This is currently needed for the 
porting the build of some Oracle specific parts to using build-infra 
style makefiles. The changes include:

* Ability to strip binaries at link time in SetupNativeCompilation.
* Supply a custom macro to SetupCopyFiles to perform some kind of 
transformation when copying files.
* A new flag to the compare script, --strip, which causes all native 
binaries to be stripped before being compared.

Bug: https://bugs.openjdk.java.net/browse/JDK-8135060
Webrev: http://cr.openjdk.java.net/~erikj/8135060/webrev.01/

/Erik