Various misc changes to convert bitbake to python3 which don't warrant
separation into separate commits.
(Bitbake rev: d0f904d407f57998419bd9c305ce53e5eaa36b24)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This uses bb.utils.load_plugins, based on the plugin handling in recipetool
and devtool in oe-core.
(Bitbake rev: 5e542df9b966a99b5a5b8aa7cf6100174aff54b2)
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>