requested to merge 3142-add-checkconf-check-for-dnssec-policy-keys-algorithm-v9_16 into v9_16
bad-ksk-without-zsk.conf only has a ksk defined without a matching zsk for the same algorithm.
bad-zsk-without-ksk.conf only has a zsk defined without a matching ksk for the same algorithm.
bad-unpaired-keys.conf has two keys of different algorithms one ksk only and the other zsk only
(cherry picked from commit f23e86b9)
Closes #3142 (closed)