oe-init-build-env: Allow startup with and without memres
Use the bitbake --status-only and the fact that bitbake.lock will
contain the host name and port to determine when to activate or
shutdown the stay resident bitbake server.
This allows a end developer to cleanly switch between the two ways to
use bitbake as well as enter the memres bitbake server from multiple
shells without starting the server if it is already running.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
