copy to clipboard is optional
Both interactive and non-interactive parse opts into opts

- copy csr/cer to clipboard on the mac is optional
- both parse subjects into an array
- option for self signed from cli
- put interactive prompt values into opts
DRY generation and output of csr/cert
Merge pull request #83 from kbrock/r509-cli-san

R509 cli san
change trollop options on r509 cli to show proper san example
Merge pull request #84 from reaperhulk/msg-fix

change trollop options on r509 cli to show proper san example