Weekend of Nuget — Now with GFlags

Somehow, I never liked GetOpt. I am not convinced by all details of GFlags as well. But, it is the better option than whipping up some CmdLine parser myself.

For the nuget package I focused only on the thread-safe static library. If you need another variant, feel free to reuse my AppVeyor artifacts. Those include basically everything.

As usual, the package code is free: https://bitbucket.org/sgrottel_nuget/gflags_nuget