There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
- SIZE_T -> ULONG in KsecGatherEntropyData
- Add missing ZwQueryInformationProcess() prototype for x64 build of btrfs
- Fix ml.exe path for VS 2017 Community Edition
- Add missing Handle32ToHandle to basetsd.h