ENH: glboal file handling: initial commit

Moved file path handling to regIOobject and made it type specific so
now every object can have its own rules. Examples:
- faceZones are now processor local (and don't search up anymore)
- timeStampMaster is now no longer hardcoded inside IOdictionary
  (e.g. uniformDimensionedFields support it as well)
- the distributedTriSurfaceMesh is properly processor-local; no need
  for fileModificationChecking manipulation.

applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C

@@ -601,7 +601,7 @@ autoPtr<mapPolyMesh> createRegionMesh
 
         Info<< "Testing:" << io.objectPath() << endl;
 
-        if (!io.headerOk())
+        if (!io.typeHeaderOk<IOdictionary>(true))
         // if (!exists(io.objectPath()))
         {
             Info<< "Writing dummy " << regionName/io.name() << endl;
@@ -628,7 +628,7 @@ autoPtr<mapPolyMesh> createRegionMesh
             false
         );
 
-        if (!io.headerOk())
+        if (!io.typeHeaderOk<IOdictionary>(true))
         //if (!exists(io.objectPath()))
         {
             Info<< "Writing dummy " << regionName/io.name() << endl;