turbulence models get thermal dissipation source term(s)

- thermalDissipation()
  corresponds to the energy lost due to viscous efffects and
  what exits the energy cascade via dissipation.

- thermalDissipationEff()
  corresponds to the energy lost due to effective viscous efffects.
  Everything that is lost from momentum. Thus essentially assumes
  turbulent equilibrium, but is what STAR-CD and Fluent seem to be using.
  Thus even if it's wrong, provide it anyhow.

- minor consistency update in comments

tutorials/combustion/XiFoam/les/pitzDaily/constant/LESProperties

@@ -19,6 +19,8 @@ LESModel        oneEqEddy;
 
 delta           cubeRootVol;
 
+turbulence      on;
+
 printCoeffs     on;
 
 laminarCoeffs

tutorials/combustion/XiFoam/les/pitzDaily3D/constant/LESProperties

@@ -19,6 +19,8 @@ LESModel        oneEqEddy;
 
 delta           cubeRootVol;
 
+turbulence      on;
+
 printCoeffs     on;
 
 laminarCoeffs

tutorials/compressible/rhoPisoFoam/les/pitzDaily/constant/LESProperties

@@ -17,6 +17,8 @@ FoamFile
 
 LESModel        oneEqEddy;
 
+turbulence      on;
+
 printCoeffs     on;
 
 delta           cubeRootVol;