kernel32_vista delay loading

inspired by CORE-13361 we were discussing whether it's possible to delay-load kernel32_vista.dll too, same as we did with ntdll_vista.

Goal is to allow at least booting without the file being present (and eventually save some memory/handles then).
Other goal is to not loose any current functionality when file present.

r75427 gcc dbg
as far as I can see kernel32_vista.dll is currently imported by
inseng.dll
libtirpc.dll
msi.dll (a fixme points towards it should be delay-loaded here)
ole32.dll
oleaut32.dll
pdh.dll
rpcrt4.dll
snmpapi.dll
urlmon.dll
wininet.dll
nfsd.exe

I tried delay-loading at all of the above in
WIP-kernel32_vista-delay-load-everywhere.patch

patch compiled and succeeded first stage, but second stage failed here:
r75427-kernel_vista_delay_load_everywhere_fails_SecondStage.png

Log:
(../dll/win32/syssetup/wizard.c:1760) SetupInstallFromInfSection failed with error 998

Not sure, but eventually ticket is blocked by CORE-6504.