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/preProcessing/applyBoundaryLayer/applyBoundaryLayer.C

@@ -187,7 +187,7 @@ int main(int argc, char *argv[])
             false
         );
 
-        if (omegaHeader.headerOk())
+        if (omegaHeader.typeHeaderOk<volScalarField>(true))
         {
             volScalarField omega(omegaHeader, mesh);
             dimensionedScalar k0("VSMALL", k.dimensions(), VSMALL);
@@ -212,7 +212,7 @@ int main(int argc, char *argv[])
             false
         );
 
-        if (nuTildaHeader.headerOk())
+        if (nuTildaHeader.typeHeaderOk<volScalarField>(true))
         {
             volScalarField nuTilda(nuTildaHeader, mesh);
             nuTilda = nut;