Add support for iperf authentication.#58

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scottmsilver wants to merge 6 commits intothiezn:masterfrom

scottmsilver:master

Commits on Sep 2, 2020

Support authentication and server output.
Scott Silver
committed
Missed some changes.
Scott Silver
committed
Remove one errant printf.
Scott Silver
committed

Commits on Sep 4, 2020

Break out auth generation so I could use it to add my own users easily.
Scott Silver
committed

Commits on Sep 7, 2020

Fix bug where data was not initialized for certain versions of iperf.
Scott Silver
committed

Commits on Jan 5, 2021

Fixed version check and some tests
Scott Silver
committed