ENH: First pass through doxygen info updates for function objects

src/postProcessing/functionObjects/utilities/codedFunctionObject/codedFunctionObject.H

@@ -21,6 +21,9 @@ License
     You should have received a copy of the GNU General Public License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
+\addtogroup functionObjects
+@{
+
 Class
     Foam::codedFunctionObject
 
@@ -29,6 +32,7 @@ Description
 
 SourceFiles
     codedFunctionObject.C
+@}
 
 \*---------------------------------------------------------------------------*/
 
@@ -90,6 +94,7 @@ protected:
         // Get the dictionary to initialize the codeContext
         virtual const dictionary& codeDict() const;
 
+
 private:
 
         //- Disallow default bitwise copy construct