STYLE: eliminate ParaView_INST_DIR variable and simplify plugin Make/options

- the 'make install' target from ParaView now installs all of the
  includes necessary for compiling plugins.

src/paraview-plugins/PV3Readers/PV3FoamReader/vtkPV3Foam/Make/options

@@ -2,12 +2,7 @@ EXE_INC = \
     -I$(LIB_SRC)/meshTools/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
-    -I$(ParaView_DIR)/VTK \
-    -I$(ParaView_INST_DIR) \
-    -I$(ParaView_INST_DIR)/VTK \
-    -I$(ParaView_INST_DIR)/VTK/Common \
-    -I$(ParaView_INST_DIR)/VTK/Filtering \
-    -I$(ParaView_INST_DIR)/VTK/Rendering \
+    -I$(ParaView_DIR)/include/paraview-$(ParaView_MAJOR) \
     -I../../vtkPV3Readers/lnInclude \
     -I../PV3FoamReader
 

src/paraview-plugins/PV3Readers/PV3blockMeshReader/vtkPV3blockMesh/Make/options

 EXE_INC = \
     -I$(LIB_SRC)/meshTools/lnInclude \
     -I$(LIB_SRC)/mesh/blockMesh/lnInclude \
-    -I$(ParaView_DIR)/VTK \
-    -I$(ParaView_INST_DIR) \
-    -I$(ParaView_INST_DIR)/VTK \
-    -I$(ParaView_INST_DIR)/VTK/Common \
-    -I$(ParaView_INST_DIR)/VTK/Filtering \
-    -I$(ParaView_INST_DIR)/VTK/Rendering \
+    -I$(ParaView_DIR)/include/paraview-$(ParaView_MAJOR) \
     -I../../vtkPV3Readers/lnInclude \
     -I../PV3blockMeshReader
 

src/paraview-plugins/PV3Readers/vtkPV3Readers/Make/options

 EXE_INC = \
-    -I$(ParaView_DIR)/VTK \
-    -I$(ParaView_INST_DIR) \
-    -I$(ParaView_INST_DIR)/VTK \
-    -I$(ParaView_INST_DIR)/VTK/Common \
-    -I$(ParaView_INST_DIR)/VTK/Filtering \
-    -I$(ParaView_INST_DIR)/VTK/Rendering
+    -I$(ParaView_DIR)/include/paraview-$(ParaView_MAJOR)
 
 LIB_LIBS = \
     $(GLIBS)