cve-check-tool-native do_populate_cve_db task was using deprecated NVD
xml data feeds, cve-update-db uses NVD json data feeds.
Sqlite database schema was updated to take into account CVSSv3 CVE
scores and operator in affected product versions.
A new META table was added to store the last modification date of the
NVD json data feeds.
Signed-off-by: Pierre Le Magourou <pierre.lemagourou@softbankrobotics.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
