new SynFastWideString.pas unit for Delphi 6-2007
  *  will patch the System.pas RTL to use a custom NON OLE COMPATIBLE WideString type, NOT using the slow Windows API, but FastMM4 (without COW)
  *  this unit makes WideString almost as fast as the UnicodeString of Delphi 2009+
  *  to be used with stand-alone Delphi 6/7/2007 products in which WideString is used a lot
  *  MAIN DRAWBACK IS THAT USING THIS UNIT WILL BREAK COMPATIBILITY WITH OLE/COM LIBRARIES !!