graphite2 @1.3.9: update to 1.3.12

[ryandesign (Ryan Carsten Schmidt)]

I've been verifying which of our many patches and workaround are still needed, and trying to determine what new patches might be needed for this version.

[l2dy (Zero King)]

A number of security vulnerabilities in the Graphite 2 library including out-of-bounds reads, buffer overflow reads and writes, and the use of uninitialized memory. These issues were addressed in Graphite 2 version 1.3.10.

See ​https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/#CVE-2017-7778.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #54513.

[Schamschula (Marius Schamschula)]

It looks like the homepage has moved to http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_home (ugly) and the source is now on GitHub: https://github.com/silnrsi/graphite

[ryandesign (Ryan Carsten Schmidt)]

Nearly ready to merge ​this PR.

[dgilman (David Gilman)]

In 88eb4637a61a79a8bfc27d2d019179aa67d50293/macports-ports (master):

graphite2: Update to 1.3.12

• Use github 1.0 portgroup
• Use cxx11 1.1 portgroup; 1.3.12 and later require C++11
• Update to cmake 1.1 portgroup
• Remove patch-src-Face.cpp.diff as it builds without this
• Re-enable the featuremap test as it works now
• Add fonttools and python36 test dependencies
• Remove test.env as tests pass without it
• Remove cppflags-replace no longer needed after cmake portgroup fix
• Remove removal of -fno-stack-protector on Darwin 8 as upstream no longer uses this flag
• Remove disabling segment caching code on PowerPC as upstream has removed the segment caching code as of 1.3.12
• Remove muniversal 1.0 portgroup no longer needed due to above

See: #42872

Closes: #54141