Including ntddk.h in user mode generates lots of compiler warnings

[dthaler]

Update the README with how to deal with the following:

C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24384): warning C28301: No annotations for first declaration of 'POOL_FLAGS'. See c:\program files (x86)\windows kits\10\include\10.0.22621.0\km\wdm.h(17293). 
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24547): warning C28160: Error annotation: Must succeed pool allocations are forbidden. Allocation failures cause a system crash.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24538): warning C6387: 'return' could be '0'.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24615): warning C28160: Error annotation: Must succeed pool allocations are forbidden. Allocation failures cause a system crash.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24606): warning C6387: 'return' could be '0'.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24646): warning C6387: 'return' could be '0'.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24684): warning C28160: Error annotation: Must succeed pool allocations are forbidden. Allocation failures cause a system crash.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(24674): warning C6387: 'return' could be '0'.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(28457): warning C28252: Inconsistent annotation for 'MmGetSystemRoutineAddress': return/function has 'SAL_maxIRQL(0)' on the prior instance. See c:\program files (x86)\windows kits\10\include\10.0.22621.0\km\wdm.h(13307). 
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\wdm.h(28457): warning C28253: Inconsistent annotation for 'MmGetSystemRoutineAddress': return/function has 'SAL_maxIRQL(1)' on this instance. See c:\program files (x86)\windows kits\10\include\10.0.22621.0\km\wdm.h(13307). 
c:\program files (x86)\windows kits\10\include\10.0.22621.0\km\ntddk.h(22357): warning C28230: The type of '_Param_(1)' has no member 'RecordLength'.
c:\program files (x86)\windows kits\10\include\10.0.22621.0\km\ntddk.h(22357): warning C28285: For function 'WheaErrorRecordBuilderAddPacket' '_Param_(1)' syntax error in 'SAL_writableTo(byteCount(__formal(0,Record)->RecordLength))' near 'RecordLength))'.
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\ntstrsafe.h(6765): warning C28196: The requirement that '_Param_(1)->MaximumLength>0?_Param_(1)->Length>0?_Param_(1)->Buffer==_Param_(2)&&(_Param_(1)->Buffer==0||_Param_(1)->Buffer!=0):1:1' is not satisfied. (The expression does not evaluate to true.)
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\km\ntstrsafe.h(6823): warning C28196: The requirement that '_Param_(1)->MaximumLength>0?_Param_(1)->Length>0?_Param_(1)->Buffer==_Param_(2)&&(_Param_(1)->Buffer==0||_Param_(1)->Buffer!=0):1:1' is not satisfied. (The expression does not evaluate to true.)

Probably need to create an ntddk.h wrapper to disable these while processing ntddk.h and its dependencies.