- add additional control via a Foam::infoDetailLevel flag, which is
  supported by a 'DetailLevel' macro.  Eg,

      DetailLevel << "some information" << nl

- When infoDetailLevel is zero, the stdout for all Foam::system() calls
  are also redirected to stderr to prevent child output from
  appearing on the parent.

- close stdin before exec in system call.

- convenient way to temporarily suspend the SIGFPE handler.
  Eg,

      // Normal code with SIGFPE enabled ...
      sigFpe::set();

      {
          // Ignore SIGFPE in this scope ...
          sigFpe::ignore noFpeHandling;
          ...
      }

- use Enum instead of NamedEnum
- shorter form for dimensionedScalar

- reduce verbosity about missed seeding for DTRM cloud.
  Re-enable old warnings in debug mode.

- some paraview versions (eg, on windows) don't support float, only double.

  This mostly affected the vtkSurfaceWriter.

  The foamToVTK is also affected, but since it also supports the XML
  output formats (vtp, vtu) these can be used instead.

- affected manually generated legacy output (vtkSetWriter, vtkSurfaceWriter)

- the order emitted by vtkSetWriter remains, but needs to revisited again.

Feature ico reacting multiphase inter foam dev

See merge request OpenFOAM-plus!204

Merge branch 'develop-pre-release' of develop.openfoam.com:Development/OpenFOAM-plus into develop-pre-release

- incorrect coordinateSystem clear() after the move

- add Test-coordinateSystem

Merge branch 'develop-pre-release' of develop.openfoam.com:Development/OpenFOAM-plus into develop-pre-release

Correcting tutorial and expanding documentation

- this provides easily sortable names.

  The time information is available via the corresponding .series
  file, which can also be loaded directly with ParaView 5.5 or later.

  For further redundancy, time information is saved in the first XML
  comment inside of the .vtp files. For example,

      <!-- cloud=limestoneCloud1 time=0.005 index=200 -->