Fixing mesh function evaluator to work with more general RealType.

         return function.setup( meshPointer, parameters, prefix );

      }

      template< typename EntityType, typename TimeReal = RealType >

      template< typename EntityType >

      __cuda_callable__ inline

      static RealType getValue( const FunctionType& function,

                                const EntityType& meshEntity,

                                const TimeReal& time )

                                const RealType& time )

      {

         return function( meshEntity, time );

      }