[foreign] rename package nicl to foreign

[Henry Jen]

Looks fine, tested on MacOS and things are working.

Cheers,
Henry


> On Jul 5, 2018, at 6:31 AM, Maurizio Cimadamore <maurizio.cimadamore at oracle.com> wrote:
> 
> Hi,
> as part of the code restructuring, here's a webrev which updates the packages names to the new form:
> 
> nicl -> foreign
> nicl.types -> foreign.memory
> nicl.metadata -> foreign.annotations
> nicl.layout -> foreign.layout
> 
> I've also did similar renaming in the test folder, and I've changed the test group form jdk_nicl to jdk_foreign.
> 
> Most of the webrev is straightforward and IDE generated - however there were changes that I had to do manually, in cpp files, makefiles and other configuration files, as well as in some jextract hard coded constants.
> 
> Webrev:
> 
> http://cr.openjdk.java.net/~mcimadamore/panama/foreign_rename/
> 
> Cheers
> Maurizio
> 
>