ref-manual: Added new overview figure.

Fixes [YOCTO #2808]

This figure is slightly different than our reference environment
figure used in the QS.  I did not want to simply duplicate it.
Here the only difference is boxing in the metadata layer input
to the left.

(From yocto-docs rev: d1c8c69dfb5ec4261b8e5d15de6d5088fde86024)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/documentation/ref-manual/figures/yocto-environment-ref.png b/documentation/ref-manual/figures/yocto-environment-ref.png
new file mode 100644 (file)
index 0000000..650c6c8
Binary files /dev/null and b/documentation/ref-manual/figures/yocto-environment-ref.png differ