Fixed a wrong initialization of the VT sizes array.

- new stubs:  NtQueryDirectoryFile,  ZwQueryDirectoryFile
- impl.: RtlAllocateHeap, RtlCreateHeap, RtlDestroyHeap, RtlFreeHeap,
  RtlGetDaclSecurityDescriptor, RtlGetSaclSecurityDescriptor
- impl. by Rex Jolliff (rex@lvcablemodem.com): RtlTimeToTimeFields,
  RtlTimeFieldsToTime

New: GetSecurityDescriptorSacl.

Delphi 2.0 passes NULL for lpstrFileTitle to GetOpen/SaveFileName.

removed additional "eax" from clobber list, so egcs-current likes it.

code from /misc/commdlg.c to this directory.  Also made a start in
documenting the API calls.

additional {}. Rewrote GetCreationModeFromSTGM so we don't get
"possible use of uninitialized variable".

experiment). Adapted int21 CreateDirectory call to still return the
correct DOS error codes according to Ralph Brown.

- added (or corrected) check for the return value of the enumeration functions

accordingly (based on a patch by Juergen Schmied).

is not found.

- removed a couple of unneeded stdlib.h and stdio.h includes

obfuscated pointer.

used with Borland C++ 4.52, but should be easy to adapt to Winelib by
whoever feels like it; I haven't, I just released this useful test app
in case it would benefit other developers.

tester app gave under real Windows for various events. It was useful
for some of my debugging at least, perhaps it could be of some use to
other Wine GUI debuggers as well.

needs to define HANDLER_CONTEXT, wctype.h does not like 'wsprintf'
defined, msdos/dpmi.c needs "stackframe.h" too, and multimedia/dsound.c
needs "winuser.h".