NtCreateFile function enums

[AArnott]

The NtCreateFile method parameters could use some enum love:

• DesiredAccess parameter is currently declared as uint, but it ought to be as this FILE_ACCESS_FLAGS enum.
• FileAttributes parameter should be declared as a FILE_ATTRIBUTES enum. Previously suggested to be FILE_FLAGS_AND_ATTRIBUTES but @KalleOlaviNiemitalo made a good comment in DesiredAccess and FILE_ACCESS_FLAGS enums win32metadata#1440 (comment) to consider.
• CreateOptions (#1441)
• Remove NtCreateFile from the SDK metadata as part of this change

See also discussion in microsoft/win32metadata#1440.

If NtCreateFile is in the WDK, it's already in the win32metadata, so... do we remove it, or fix the enums?

[ChrisDenton]

NtCreateFile is in both the WDK and the SDK. However, the WDK has more related definitions than the SDK.

[mikebattista]

Keeping this issue here since shared definitions should be consolidated into the SDK metadata.

[kennykerr]

I think we should remove this from the Win32 metadata and add it to the WDK metadata, since there are plenty other NtXxx APIs in the WDK but nothing comparable in the SDK. So the work here would be to remove it from this repo just as soon as the WDK repo add its, along with its friends.

[mikebattista]

I will transfer to wdkmetadata then and add a task to the item to remove it from the SDK before completing it.

[kennykerr]

So the function was removed from the win32 metadata and added to the wdk metadata? We'll need a matching release of both to avoid a missing function issue.