functionObjects: rewritten to all be derived from 'functionObject'

- Avoids the need for the 'OutputFilterFunctionObject' wrapper
  - Time-control for execution and writing is now provided by the
    'timeControlFunctionObject' which instantiates the processing
    'functionObject' and controls its operation.
  - Alternative time-control functionObjects can now be written and
    selected at run-time without the need to compile wrapped version of
    EVERY existing functionObject which would have been required in the
    old structure.
  - The separation of 'execute' and 'write' functions is now formalized in the
    'functionObject' base-class and all derived classes implement the
    two functions.
  - Unnecessary implementations of functions with appropriate defaults
    in the 'functionObject' base-class have been removed reducing
    clutter and simplifying implementation of new functionObjects.
  - The 'coded' 'functionObject' has also been updated, simplified and tested.
  - Further simplification is now possible by creating some general
    intermediate classes derived from 'functionObject'.

src/sampling/meshToMesh/meshToMesh.C

@@ -265,28 +265,34 @@ void Foam::meshToMesh::calculate(const word& methodName)
         }
 
         // set up as a reverse distribute
-        mapDistribute::distribute
+        mapDistributeBase::distribute
         (
             Pstream::nonBlocking,
             List<labelPair>(),
             tgtRegion_.nCells(),
             map.constructMap(),
+            false,
             map.subMap(),
+            false,
             tgtToSrcCellAddr_,
             ListPlusEqOp<label>(),
+            flipOp(),
             labelList()
         );
 
         // set up as a reverse distribute
-        mapDistribute::distribute
+        mapDistributeBase::distribute
         (
             Pstream::nonBlocking,
             List<labelPair>(),
             tgtRegion_.nCells(),
             map.constructMap(),
+            false,
             map.subMap(),
+            false,
             tgtToSrcCellWght_,
             ListPlusEqOp<scalar>(),
+            flipOp(),
             scalarList()
         );