IfcIO v0.11.1

Fixed

• IfcIO.Scene NuGet package: published for the first time. nuget.org refused IfcIO.Scene 0.11.0 because the
  upper bound of its IOScene range, 0.2.0-0, is a version it does not accept in a dependency (a prerelease label of
  one part must start with a letter). The range is now [0.1.0, 0.2.0-0.0), which keeps out every 0.2.0 preview
  except 0.2.0-0, a version IOScene does not publish.
  IfcIO and IfcIO.Cli 0.11.1 have the same code as 0.11.0.
• tools/pack-release.ps1 fails a release whose IfcIO.Scene dependency bounds nuget.org would refuse, and one whose
  IOScene range has no lower bound.