ENH: Updated porousSimpleFoam after porosity model updates

applications/solvers/incompressible/simpleFoam/porousSimpleFoam/createPorousZones.H

-    porousZones pZones(mesh);
+    IOporosityModelList pZones(mesh);
     Switch pressureImplicitPorosity(false);
 
     // nUCorrectors used for pressureImplicitPorosity
     int nUCorr = 0;
-    if (pZones.size())
+    if (pZones.active())
     {
         // nUCorrectors for pressureImplicitPorosity
         nUCorr = simple.dict().lookupOrDefault<int>("nUCorrectors", 0);

applications/solvers/incompressible/simpleFoam/porousSimpleFoam/porousSimpleFoam.C

@@ -33,7 +33,7 @@ Description
 #include "fvCFD.H"
 #include "singlePhaseTransportModel.H"
 #include "RASModel.H"
-#include "porousZones.H"
+#include "IOporosityModelList.H"
 #include "simpleControl.H"
 #include "IObasicSourceList.H"