Add Parity and Blocking Read support#3

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mrh1997 wants to merge 10 commits intoMarzac:masterfrom

mrh1997:add-features

Commits on Aug 27, 2019

Commits on Nov 21, 2019

Commits on Nov 28, 2019

macOS/Darwin Port did not work any more since 976a24
mrh1997
committed

Commits on Jan 21, 2020

Deactivate XON/XOFF Control Flow on linux
mrh1997
committed