[New Feature] Easy-TLS utility

[TinCanTech]

Please see: https://github.com/TinCanTech/easy-tls

Easy-TLS
An Easy-RSA extension utility to help manage Easy-RSA based x509 security credentials combined with OpenVPN specific TLS keys.

Testing and feedback welcome.

[luizluca]

Does it make sense to have an easy-shelllscript over another easy-shelllscript over OpenSSL?
Why not simply improve the last one?

[TinCanTech]

In time Easy-TLS may be integrated into Easy-RSA but, for the time being, a separate script was the simplest and most effective approach.

[TinCanTech]

Since Easy-RSA now has a basic TLS Key system (#1185), covering TLS-AUTH and TLS-CRYPT-V1, Easy-TLS can be stripped down to only manage TLS-CRYPT-V2 Keys.