Manpages of src:cockpit in Debian buster-backports

• cockpit-bridge(1)
• cockpit-desktop(1)
• cockpit-tls(8)
• cockpit-ws(8)
• cockpit(1)
• cockpit.conf(5)
• pam_cockpit_cert(8)
• pam_ssh_add(8)
• remotectl(8)