A quick partial port of Jon Skeet's MiscUtil to .NET Core.
MiscUtil home: http://www.yoda.arachsys.com/csharp/miscutil/
Most is ported, while some files are not ported yet, and may never be (PRs welcome.)
Places that need work are disabled with #if TOPORT ... #endif.
You can always find the most recent version of this library at http://www.pobox.com/~skeet/csharp/miscutil
Documentation and history is also available at the above website.