ENH: Added deprecation warnings for SpalartAllmaras and kOmegaSST DES variants

src/TurbulenceModels/turbulenceModels/DES/SpalartAllmarasDES/SpalartAllmarasDES.C

@@ -173,6 +173,11 @@ SpalartAllmarasDES<BasicTurbulenceModel>::SpalartAllmarasDES
 
     if (type == typeName)
     {
+        WarningInFunction
+            << "This model is not recommended and will be deprecated in future "
+            << "releases. Please consider using the DDES/IDDES versions instead"
+            << endl;
+
         this->printCoeffs(type);
     }
 }

src/TurbulenceModels/turbulenceModels/DES/kOmegaSSTDES/kOmegaSSTDES.C

@@ -174,6 +174,11 @@ kOmegaSSTDES<BasicTurbulenceModel>::kOmegaSSTDES
 
     if (type == typeName)
     {
+        WarningInFunction
+            << "This model is not recommended and will be deprecated in future "
+            << "releases. Please consider using the DDES/IDDES versions instead"
+            << endl;
+
         this->printCoeffs(type);
     }
 }