ENH: improved infrastructure for writing VTK content

Note: classes are prefixed with 'foamVtk' instead of 'vtk' to avoid potential
conflicts with VTK itself.

foamVtkCore
~~~~~~~~~~~
- General very low-level functionality.

foamVtkPTraits
~~~~~~~~~~~~~~
- Traits type of functionality for VTK

foamVtkOutputOptions
~~~~~~~~~~~~~~~~~~~~
- The various format output options as a class that can be passed to
  formatters etc.

foamVtkCells
~~~~~~~~~~~~
- Intended for unifying vtkTopo and PV-Reader code in the future.
- Handles polyhedron decompose internally etc

foamVtkOutput, foamVtkFormatter
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Output helpers.
- Selector for individual formatters.
  Currently write all scalar data a 'float' (not 'double'). Can
  revisit this in the future.

applications/utilities/postProcessing/graphics/PVReaders/PVFoamReader/vtkPVFoam/Make/options

@@ -3,6 +3,8 @@ EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
+    -I$(LIB_SRC)/fileFormats/lnInclude \
+    -I$(LIB_SRC)/conversion/lnInclude \
     -I$(ParaView_INCLUDE_DIR) \
     -I$(ParaView_INCLUDE_DIR)/vtkkwiml \
     -I../../vtkPVReaders/lnInclude \
@@ -10,7 +12,7 @@ EXE_INC = \
 
 LIB_LIBS = \
     -ldynamicMesh \
-    -ldynamicMesh \
+    -lconversion \
     -lgenericPatchFields \
     -llagrangian \
     -L$(FOAM_LIBBIN) -lvtkPVReaders \