ENH: setFields : allow faceSets for patchField setting

tutorials/heatTransfer/buoyantBoussinesqPimpleFoam/hotRoom/system/setFieldsDict

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue T 300
+);
+
+regions
+(
+    // Set patch values (using ==)
+    boxToFace
+    {
+        box (4.5 -1000 4.5) (5.5 1E-5 5.5);
+
+        fieldValues
+        (
+            volScalarFieldValue T 600
+        );
+    }
+);
+
+// ************************************************************************* //

tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/hotRoom/system/setFieldsDict

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue T 300
+);
+
+regions
+(
+    // Set patch values (using ==)
+    boxToFace
+    {
+        box (4.5 -1000 4.5) (5.5 1E-5 5.5);
+
+        fieldValues
+        (
+            volScalarFieldValue T 600
+        );
+    }
+);
+
+// ************************************************************************* //

tutorials/heatTransfer/buoyantPimpleFoam/hotRoom/system/setFieldsDict

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue T 300
+);
+
+regions
+(
+    // Set patch values (using ==)
+    boxToFace
+    {
+        box (4.5 -1000 4.5) (5.5 1E-5 5.5);
+
+        fieldValues
+        (
+            volScalarFieldValue T 600
+        );
+    }
+);
+
+// ************************************************************************* //

tutorials/heatTransfer/buoyantSimpleFoam/hotRoom/system/setFieldsDict

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue T 300
+);
+
+regions
+(
+    // Set patch values (using ==)
+    boxToFace
+    {
+        box (4.5 -1000 4.5) (5.5 1E-5 5.5);
+
+        fieldValues
+        (
+            volScalarFieldValue T 600
+        );
+    }
+);
+
+// ************************************************************************* //