Add support for PKCS12 certs to Couchbase Server.
MB-24404 Couchbase Certificate doesn't accept pkcs#8/12 private keys
DOC-11071 Document support for PKCS12 format of cert
DOC-11519 PKCS#12 - in SDK docs
DOC-9523 PKCS#12
MB-50211 Add CLI support for PKCS#12 cert format