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.
- using 'nil' type to write geometry only, in the future we could fallback to 'null'
writer and hook in arbitrary formats from surfMesh
- IOobject gets writeEndDivider() static method
- regIOobject: don't re-register an unregister object on rename/assignment
- Hasher: split-off HasherInt with uint32_t specializations
- IOobject: writeBanner/writeDivider return Stream for easier chaining.
... also dropped some namespace bracketing while I was at it.
- exists() = forward to OSspecific exists(...)
- isDir() = forward to OSspecific dir(...)
- isFile() = forward to OSspecific file(...)
- IOobjectComponents() - split into instance, local, name following rules
set out for IOobject.
- added IOobject(path, registry, ...) constructor that uses
fileName::IOobjectComponents(). This hides the complexity we otherwise need.
* new -srcDoc option to display doxygen-processed source code
* display standard options -help/-doc/-srcDoc at end of usage
* consolidate code when writing IOobject headers
* drop writeLogbanner and add optional bool to writeBanner
* minor formatting changes
