bitbake.conf/sanity: Separate versions and PN stamp components into separate directories for WORKDIR and STAMP
This means some of the hacks we have to tell where the package name ends and
the version starts in the directory layout becomes obsolete, simplifying the
work of some of the cleanup scripts. It also makes the layout slightly more
intuitive to the user.
It does force a rebuild onto the user but it will reuse sstate successfully.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
