Standards compliant TLS clients require
that IP addresses be compared against
IP type SAN fields.
However, some firmware ignores IP fields and only checks DNS fields.
Workaround and provide compatibility
by duplicating the IP as DNS and IP fields.
Also, clean up the temporary config file when done.
Commit to repository, even though not yet used. It is likely to
be renamed. The purpose is to help generate an appropriate self signed
cert for https including all the ip addresses as subject alternative
names so that names or addresses may be used with installers that
have had the cert injected.
