[PATCH] msvcrt: Implement _get_environ and _get_wenviron

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=50806

Your paranoid android.


=== debian9 (64 bit WoW report) ===

Report errors:
msvcrt:environ has no test summary line (early exit of the main process?)