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/foamFormatConvert.C

@@ -79,7 +79,7 @@ bool writeZones(const word& name, const fileName& meshDir, Time& runTime)
 
     bool writeOk = false;
 
-    if (io.headerOk())
+    if (io.typeHeaderOk<cellZoneMesh>(false))
     {
         Info<< "        Reading " << io.headerClassName()
             << " : " << name << endl;

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;

applications/utilities/miscellaneous/foamHelp/helpTypes/helpBoundary/helpBoundary.C

@@ -134,7 +134,8 @@ void Foam::helpTypes::helpBoundary::execute
             IOobject::MUST_READ
         );
 
-        if (fieldHeader.headerOk())
+        // Check for any type of volField
+        if (fieldHeader.typeHeaderOk<volScalarField>(false))
         {
             if (args.optionFound("fixedValue"))
             {

applications/utilities/miscellaneous/patchSummary/patchSummary.C

@@ -106,7 +106,7 @@ int main(int argc, char *argv[])
                 IOobject::MUST_READ
             );
 
-            if (obj.headerOk())
+            if (obj.typeHeaderOk<volScalarField>(false))
             {
                 addToFieldList(vsf, obj, objI, mesh);
                 addToFieldList(vvf, obj, objI, mesh);