This patch packages up Intel's X86 Encoder and Decoder library and associated cli tool "examples." A few things of note: 1) The build uses Intel's custom Python build tool `mbuild' so we have to manually handle the main build phases. We may need to add explicit options to the build script invocation so that build variables (e.g. CFLAGS etc.) propogate correctly. These don't look to be set in the environment, so what variables should we pick be picking up and from where? 2) The group of tests under `tests/tests-avx512pf' seems to be failing. A user on the irc channel also cross-checked for me and confirmed the same. This program isn't actually *executing* the avx instructions, so I don't think the failing test are specific to the executing cpu. Anyway, I opted to leave this test in the source commented out. 3) The commands provided by the `out' output are pretty poorly documented and have dumb names. I suspose this is becase the utilities are branded as just "examples" of using the library. Anyway, this is a case where the only reasonable documentation is the source code, so I provide that for the utilities in the `doc' output. 4) Finally, the `devel' output supplies the library and headers proper. 5) The package name `xed' potentially collides with the package from http://xed.sourceforge.net/. We don't currently have the latter yet, but I mention this just in case there is a good way to proactively handle this up front. Thoughts? I threw this together just because I wanted it myself but figured it's worth sharing.