New scheme mainly provides three packages: openvswitch,
openvswitch-ovn-north, openvswitch-ovn-controller.  These should fit
most usage scenarios.  Other subpackages like openvswitch-libXXX
etc.  are there for dependency management and are hidden from the
menu.

Many python and shell scripts are removed in this revision.  Most of
them cannot run out of box at all for lack of dependencies.  Others
being legacy ones are not that useful now.  Add them back at later time
when real need appears

Below are a simple listing of additions

 - initscript now incorporate also ovn north and controller support
 - ovn-ctl and ovs-ctl can be invoked directly from within $PATH

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

Changes since 2.8.2 as recorded in NEWS-2.8.2

    - NSH implementation now conforms to latest draft (draft-ietf-sfc-nsh-28).
    - Bug fixes

0006-adapt-ovs-scripts.patch was splited into two separate patches as
the original patch does not apply against 2.8.2 anymore.  Other patches
are just re-numbered without actual function change

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

Open vSwitch needs to run python on build machine to make build-time
required files.  python-six library is only required by the openvswitch
python library on target machine, not a build dependency.

We override host PYTHONPATH by overriding it in MAKE_VARS.  This way we
can remove 0003-override-pythonpath-via-make-vars.patch

This also fixes shebang wrongly pointing to python on host

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>