Computes the heat transfer coefficient [W/m2/K] using a run-time
selectable model:
- ReynoldsAnalogy
- fixedReferenceTemperature
- localReferenceTemperature

model and test case

Code supplied by Gabriel BARAJAS OJEDA

- was using system/decomposeParDict and ignoring the command-line
  option.

further investigation on the consequences on dynamic mesh for compressibleInterDyMFoam.
alphaSuSp.H has to be added in the solver folder in order to make it compatible with the alpha Eq.

Fixing fvOption in multiphase/reactingTwoPhaseEulerFoam/laminar/steamInjection

NOTE: The radiative flux (qr) is positive when the heat flux is going into the wall,
this is oposite the the he flux which is positive going out of the wall.

- removed some unneeded tutorial files

- add some notes about 'git submodule' in modules/README.md

Updated noise fft handling via fftw

See merge request Development/OpenFOAM-plus!186

The characteristics of the base scheme are recovered by applying an
explicit correction to the upwind scheme weights.

Usage
    Example of the \c deferredCorrection scheme applied to the \c linear
    scheme:
    \verbatim
    divSchemes
    {
        .
        .
        div(phi,U)      Gauss deferredCorrection linear;
        .
        .
    }
    \endverbatim

Based on a generalised form of a deferred correction linear scheme
supplied by CFD Software E+F GmbH

     avoid unphysical 'fixedValue' at boundaries

Based on the reference:
      Spalart, P. R. and Rumsey, C. L. (2007).
      Effective Inflow Conditions for Turbulence Models in Aerodynamic
      Calculations
      AIAA Journal, 45(10), 2544 - 2553.

The decay control default is off for backwards compatibility.  To enable
it, add the following to the coefficients dictionary

      // Optional decay control
      decayControl    yes;
      kInf            \<far-field k value\>;
      omegaInf        \<far-field omega value\>;

     Modifying relaxation factors for the angledDuct for rhoPimpleFoam

- regression introduced by part of commit 2787a866.

  Specifically the way that scalarRanges is written, it parses through
  until it hits invalid input. This works fine with an IStringStream,
  but the ITstream is pickier and reports this as being an error.

  So revert to IStringStream and be less picky about argList parsing.
  in the longer-term, should fix scalarRanges instead.

- required if there is no system openmp and libomp or libgomp are
  only found in the clang hierarchy

STYLE: add some notes in the openmp rules.

- the _OPENMP macro is now used in low-level testing files