fvOptions::damping: Replaced the unused cellSetOption base-class with option

Resolves the bug-report https://bugs.openfoam.org/view.php?id=3631

src/fvOptions/sources/derived/damping/damping/damping.C

@@ -179,7 +179,7 @@ Foam::fv::damping::damping
     const fvMesh& mesh
 )
 :
-    cellSetOption(name, modelType, dict, mesh),
+    option(name, modelType, dict, mesh),
     UName_(word::null),
     lambda_("lambda", dimless/dimTime, NaN),
     scale_(nullptr),
@@ -200,7 +200,7 @@ Foam::wordList Foam::fv::damping::addSupFields() const
 
 bool Foam::fv::damping::read(const dictionary& dict)
 {
-    if (cellSetOption::read(dict))
+    if (option::read(dict))
     {
         readCoeffs();
         return true;

src/fvOptions/sources/derived/damping/damping/damping.H

@@ -39,7 +39,7 @@ SourceFiles
 #ifndef damping_H
 #define damping_H
 
-#include "cellSetOption.H"
+#include "fvOption.H"
 #include "Function1.H"
 #include "volFields.H"
 
@@ -56,7 +56,7 @@ namespace fv
 
 class damping
 :
-    public cellSetOption
+    public option
 {
 protected:
 

src/fvOptions/sources/derived/damping/isotropicDamping/isotropicDamping.H

@@ -44,21 +44,6 @@ Usage
     {
         type            isotropicDamping;
 
-        selectionMode   cellZone;
-        cellZone        nearOutlet;
-
-        value           (2 0 0);   // Value towards which the field it relaxed
-        lambda          [0 0 -1 0 0 0 0] 1; // Damping coefficient
-    }
-    \endverbatim
-    Example usage with graduated onset:
-    \verbatim
-    isotropicDamping1
-    {
-        type            isotropicDamping;
-
-        selectionMode   all;
-
         // Define the line along which to apply the graduation
         origin          (1200 0 0);
         direction       (1 0 0);

src/fvOptions/sources/derived/damping/verticalDamping/verticalDamping.H

@@ -57,23 +57,6 @@ Usage
     {
         type            verticalDamping;
 
-        selectionMode   cellZone;
-        cellZone        nearOutlet;
-
-        lambda          [0 0 -1 0 0 0 0] 1; // Damping coefficient
-
-        timeStart       0;
-        duration        1e6;
-    }
-    \endverbatim
-    Example usage with graduated onset:
-    \verbatim
-    verticalDamping1
-    {
-        type            verticalDamping;
-
-        selectionMode   all;
-
         // Define the line along which to apply the graduation
         origin          (1200 0 0);
         direction       (1 0 0);

tutorials/multiphase/interFoam/laminar/wave/constant/fvOptions

@@ -19,8 +19,6 @@ option1
 {
     type            isotropicDamping;
 
-    selectionMode   all;
-
     origin          (1200 0 0);
     direction       (1 0 0);
     scale

tutorials/multiphase/interFoam/laminar/wave/constant/fvOptions.verticalDamping

@@ -19,8 +19,6 @@ option1
 {
     type            verticalDamping;
 
-    selectionMode   all;
-
     origin          (1200 0 0);
     direction       (1 0 0);
     scale