void gcr_certificate_chain_add ( GcrCertificateChain* self, GcrCertificate* certificate )
certificate to the chain. The order of certificates in the chain are
important. The first certificate should be the endpoint certificate, and
then come the signers (certificate authorities) each in turn. If a root
certificate authority is present, it should come last.
Adding a certificate an already built chain (see
gcr_certificate_chain_build()) resets the type of the certificate chain
|The data is owned by the caller of the function.|