Add support for private key file with pass phrase

[guzzard]

Add support for private key file with pass phrase. Key file and pass phrase are passed as byte[] in order to use the existing appropriate Jsch constructor.

---

[dmarkov]

@guzzard Thanks, I will ask someone to do a code review here, thanks for your pull request

[dmarkov]

@ggajos please review this one

[ggajos]

@guzzard this constructor is too big, think we should create some object that will handle preparation of those objects, also validation.

[ggajos]

@guzzard some checks failed

[ggajos]

@guzzard I can't see any test cases here also

[ggajos]

@guzzard few comments above

[ggajos]

@guzzard @yegor256 can we close this?

[ggajos]

@guzzard @yegor256 I think is no longer relevant and we should close it

[yegor256]

@ggajos ok, I'm closing

[dmarkov]

@ggajos Many thanks! 20 mins were added to your account in Transaction ID AP-1BP58002BH570513Y (task took 1389 hours and 46 mins). review comments (c=5) added as a bonus. +20 to your rating, your total score is +100

[salemrartin]

Hello, has this pull request been declined? I am not sure I understand @ggajos comment "I think is no longer relevant and we should close it"

I am stuck in my project and I really need this feature

Thanks

[dmarkov]

@guzzard once 30-15484dec/#50 puzzle is resolved (later, in another ticket), this ticket will be fully complete

[0pdd]

@guzzard the puzzle #unknown is still not solved.