ENH: add heatTransferCoeff caseDicts template (#1751)

etc/caseDicts/postProcessing/fields/heatTransferCoeff

+/*--------------------------------*- C++ -*----------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Version:  v2006
+    \\  /    A nd           | Website:  www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+Description
+    Calculates the heat transfer coefficient at wall patches,
+    outputting the data as a volScalarField.
+
+\*---------------------------------------------------------------------------*/
+
+type            heatTransferCoeff;
+libs            (fieldFunctionObjects);
+
+field           T;
+
+executeControl  writeTime;
+writeControl    writeTime;
+
+// ************************************************************************* //

[Kutalmış Berçin]

@mark have you tested this? this should have missing various mandatory entries, I think. For example:

Entry 'htcModel' not found in dictionary "functions.heatTransferCoeff"

[Mark OLESEN]

@daniel.jasinski wanted to have some boiler-plate for adding on other models to having the type, libs etc every time - see comment on #1751 (closed)

[Kutalmış Berçin]

to my understanding he just wanted to have a working postProcess -func heatTransfer rather than a boiler-plate. not a disaster, but the above doesn't work with postProcess atm, fyi.