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.

src/postProcessing/functionObjects/IO/writeDictionary/writeDictionary.C

@@ -55,7 +55,7 @@ bool Foam::writeDictionary::tryDirectory
         false
     );
 
-    if (dictIO.headerOk())
+    if (dictIO.typeHeaderOk<IOdictionary>(true))
     {
         IOdictionary dict(dictIO);