Add the initial version of the section on vulnerability reports,
operations of the Security Team with a
transcription of https://wiki.yoctoproject.org/wiki/Security_private_reporting
(From yocto-docs rev: 763d66c72bf60dc06195acc6168a9535fdf7b302)
Signed-off-by: Marta Rybczynska <marta.rybczynska@syslinbit.com>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>