Rationalised reactionThermo -> multicomponentThermo

Now that the reaction system, chemistry and combustion models are completely
separate from the multicomponent mixture thermophysical properties package that
supports them it is inconsistent that thermo is named reactionThermo and the
name multicomponentThermo better describes the purpose and functionality.

etc/codeTemplates/dynamicCode/psiuMulticomponentThermo

@@ -0,0 +1,82 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Version:  dev
+     \\/     M anipulation  |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    format      ascii;
+    class       dictionary;
+    object      psiuMulticomponentThermo;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+type
+(
+    heheuPsiThermo
+);
+
+typeBase
+(
+    heheuPsiThermo psiuMulticomponentThermo
+);
+
+energy
+(
+    absoluteEnthalpy
+    absoluteInternalEnergy
+);
+
+mixture
+(
+   egrMixture
+   homogeneousMixture
+   inhomogeneousMixture
+   veryInhomogeneousMixture
+);
+
+transport
+(
+    const
+    polynomial
+    sutherland
+);
+
+thermo
+(
+    eConst
+    ePolynomial
+    ePower
+    eTabulated
+    hConst
+    hPolynomial
+    hPower
+    hTabulated
+    janaf
+);
+
+equationOfState
+(
+    PengRobinsonGas
+    perfectGas
+);
+
+specie
+(
+    specie
+);
+
+codeOptions
+#{
+EXE_INC = \
+    -I$(LIB_SRC)/physicalProperties/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+#};
+
+
+// ************************************************************************* //