The CA certificates list now contains the actual certificate data for
approximatly a hundred certificate authorities. These certificates were
generated from https://mkcert.org, which uses the Mozilla CA certificate
list.
This also updates the code for reading the CA certificates.
Adds Sectigo RSA Domain, Extended, and Organization cert subjects
to ca_certs.ini. These are the new names for the old Comodo CA
certs that are already trusted.