//  Format of a TDirectory record in release 3.02.06.  It is never compressed.
//	----------TKey--------------
//  byte 0->3  Nbytes    = Number of bytes in compressed record (Tkey+data)	TKey::fNbytes
//       4->5  Version   = TKey class version identifier			TKey::fVersion
//       6->9  ObjLen    = Number of bytes of uncompressed data			TKey::fObjLen
//      10->13 Datime    = Date and time when record was written to file	TKey::fDatime
//                       | (year-1995)<<26|month<<22|day<<17|hour<<12|minute<<6|second
//      14->15 KeyLen    = Number of bytes in key structure (TKey)		TKey::fKeyLen
//      16->17 Cycle     = Cycle of key		 				TKey::fCycle
//      18->21 SeekKey   = Byte offset of record itself (consistency check)	TKey::fSeekKey
//      22->25 SeekPdir  = Byte offset of parent directory record 		TKey::fSeekPdir
//      26->26 lname     = Number of bytes in the class name (10)		TKey::fClassName
//      27->.. ClassName = Object Class Name ("TDirectory")			TKey::fClassName
//       0->0  lname     = Number of bytes in the object name			TNamed::fName
//       1->.. Name      = lName bytes with the name of the object <directory name> TNamed::fName
//       0->0  lTitle    = Number of bytes in the object title			TNamed::fTitle
//       1->.. Title     = lTitle bytes with the title of the object <direcory title> TNamed::fTitle
//	--------DATA----------------
//       0->0  Modified  = True if directory has been modified			TDirectory::fModified
//       1->1  Writable = True if directory is writable			TDirectory::fWriteable
//       2->5  DatimeC   = Date and time when directory was created		TDirectory::fDatimeC
//                       | (year-1995)<<26|month<<22|day<<17|hour<<12|minute<<6|second
//       6->9  DatimeM   = Date and time when directory was last modified	TDirectory::fDatimeM
//                       | (year-1995)<<26|month<<22|day<<17|hour<<12|minute<<6|second
//      10->13 NbytesKeys= Number of bytes in the associated KeysList record	TDirectory::fNbyteskeys
//      14->17 NbytesName= Number of bytes in TKey+TNamed at creation		TDirectory::fNbytesName
//      18->21 SeekDir   = Byte offset of directory record in file 		TDirectory::fSeekDir
//      22->25 SeekParent= Byte offset of parent directory record in file	TDirectory::fSeekParent
//      26->29 SeekKeys  = Byte offset of associated KeysList record in file	TDirectory::fSeekKeys
