[oe] Piglit in Poky

[Burton, Ross]

Hi,

We'd like to integrate Piglit (an OpenGL test suite) into Poky so that
we can run automated QA on the GL stack.  Piglit is currently residing
in meta-oe, but as Poky is a self-contained project we can't just add
meta-oe to it:  apart from the size of meta-oe, we can't ensure
stability if meta-oe makes incompatible changes that affect Poky.

Piglit isn't a stand-alone package, there are the dependencies of
waffle, python-mako and python-numpy to consider too.  There are two
possibilities I can see:

1) Move piglit and deps to oe-core.  Piglit is for QA purposes only
and pushes the boundaries of "core platform".  In a sense this is a
repeat of the discussion we had with Midori...  does oe-core contain
everything needed to sufficiently exercise the core components it
ships or not?

2) Add piglit and deps to meta-yocto.  Probably a new layer called
meta-yocto-qa (or similar) because the Yocto Compatible guidelines
forbid mixing distribution policy and recipes.  We'd need to sync
meta-yocto-qa with the pieces of meta-oe that we want somehow, but
that's our problem.

Thoughts and opinions welcome over Christmas, otherwise I'll toss a coin. :)

Ross