#48 add wizard

[Max]

It's pretty common scenario that one have to issue certificates for my.server.dns.name, than export them to be used by some service running on my.server.dns.name.

Right now this involves way too myna clicking all over the place. Would be pretty convenient to have wizards like "issue certificate for my web server" and "issue certificate for my email server" which would only ask absolutely necessary information (server name like my.server.dns.name) and than create, sign and export public certificate into default gnomit config folder as my.server.dns.name-cert.pem and unprotected key as my.server.dns.name-key.pem

Those 2 extra buttons on the toolbar by no means should replace current functionality - people who need unusual settings should be able to work as before. Just a little convenience for people who have to issue certificates for couple of dozens of servers with essentially the same parameters (key length, algorithm, expiration period etc - could set in advance through setting dialogue if default values are not suitable) and only different server name and function.

Being able to generate certificate files for your server in 2 clicks instead of 20 would be significant usability advantage.