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/miscellaneous/foamFormatConvert/writeMeshObject.H

@@ -61,7 +61,7 @@ inline bool writeMeshObject
 
     bool writeOk = false;
 
-    if (io.headerOk())
+    if (io.typeHeaderOk<T>(false))
     {
         Info<< "        Reading " << io.headerClassName()
             << " : " << name << endl;