added reading of kappa on dictionary read

src/turbulenceModels/incompressible/RAS/LaunderGibsonRSTM/LaunderGibsonRSTM.C

@@ -293,6 +293,7 @@ bool LaunderGibsonRSTM::read()
     if (RASModel::read())
     {
         Cmu_.readIfPresent(coeffDict());
+        kappa_.readIfPresent(coeffDict());
         Clg1_.readIfPresent(coeffDict());
         Clg2_.readIfPresent(coeffDict());
         C1_.readIfPresent(coeffDict());

src/turbulenceModels/incompressible/RAS/LienLeschzinerLowRe/LienLeschzinerLowRe.C

@@ -241,6 +241,7 @@ bool LienLeschzinerLowRe::read()
         sigmak_.readIfPresent(coeffDict());
         sigmaEps_.readIfPresent(coeffDict());
         Cmu_.readIfPresent(coeffDict());
+        kappa_.readIfPresent(coeffDict());
         Am_.readIfPresent(coeffDict());
         Aepsilon_.readIfPresent(coeffDict());
         Amu_.readIfPresent(coeffDict());

src/turbulenceModels/incompressible/RAS/SpalartAllmaras/SpalartAllmaras.C

@@ -335,6 +335,7 @@ bool SpalartAllmaras::read()
     if (RASModel::read())
     {
         sigmaNut_.readIfPresent(coeffDict());
+        kappa_.readIfPresent(coeffDict());
 
         Cb1_.readIfPresent(coeffDict());
         Cb2_.readIfPresent(coeffDict());