finite area integration

See merge request OpenFOAM-plus!179

- DynamicList now has SizeMin=16, which eliminates the need for reserve()
  in some cases

- remove unused enrichedPatch static variable

- allows enabling new warnings without causing messy output with older
  clang versions

The delta used for hmax can be set using the optional 'hmax' entry
- if not supplied, the maxDeltaxyz delta is used (backwards
  compatibility)

update for third-party versions

See merge request OpenFOAM-plus!185

- ADIOS 1.13.0
- fftw 3.3.7
- paraview 5.4.1

ENH: include ThirdParty QT libraries in LD_LIBRARY_PATH for paraview

ENH: overset: new solvers, new stencil

See merge request OpenFOAM-plus!180

Style config

See merge request OpenFOAM-plus!184

- this makes it possible to use "foamAddCompletion paraFoam" and have
  bash completions for paraFoam as well

- adjust comment formatting to reduce clutter

- relocate WM_COMPILER_ARCH, WM_COMPILER_LIB_ARCH from
  etc/{bashrc,cshrc} to etc/config.{csh,sh}/settings since these
  should not be changed by the user anyhow.

- Use gcc/g++ as common base and specialize afterwards (to reduce
  duplication)

- adjust format of WM_PROJECT_SITE fallback to allow for easier
  automated edits

Feature external coupled

See merge request OpenFOAM-plus!176

Support for additional modules

See merge request OpenFOAM-plus!183

- any code placed here should provide Allwmake and Allwclean scripts
  and normally have compilation targets into FOAM_APPBIN, FOAM_LIBBIN

  Since there is no standardize places for sources or applications,
  a simultaneous build of a module's doxygen documentation requires
  a minor bit of manual effort. Add (via symlink) the sources into
  the modules/doc/ directory to have them included in the normal
  OpenFOAM doxygen documentation generation.

  A makelink.example file is provided there as an example.

This forms part of what is termed 'automatic wall treatment' in the
reference:

    Menter, F., Carregal Ferreira, J., Esch, T., Konno, B. (2003).
    The SST Turbulence Model with Improved Wall Treatment
    for Heat Transfer Predictions in Gas Turbines.
    Proceedings of the International Gas Turbine Congress 2003 Tokyo

Note
    The full 'automatic wall treatment' description also requires use of
    the  Foam::omegaWallFunction with the \c blended flag set to 'on'

omegaWallFunction
- re-instated behaviour when not using 'blended'
- turbulence generation always included when using 'blended'
- 'blended' now true by default

epsilonWallFunction
- re-instated low-Re switching

Minor improvements for redistributePar

See merge request OpenFOAM-plus!181