nonConformal: Use explicit patch fields in fvMesh/polyFaces field

This permits further non-conformal connnection types to store additional
or alternative information in the fvMesh::polyFacesBf patch fields.
Previously, this field just used calculated patch fields types.

This change has required an update to the fvsPatchFields to make their
handling of IO of the value field consistent with the fvPatchFields. The
base class no longer writes out the value field by default.

src/finiteVolume/fields/fvPatchFields/basic/zeroGradient/zeroGradientFvPatchField.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2023 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ License
 #include "zeroGradientFvPatchField.H"
 #include "fvPatchFieldMapper.H"
 
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class Type>
 Foam::zeroGradientFvPatchField<Type>::zeroGradientFvPatchField