Changes to specific files and their effects are as follows:
create.cpp - Allows booting past second stage with UDFS media inserted without BSOD
close.cpp - Allows shutdown without hang
dircntrl.cpp - Allows New Hardware Wizard not to hang on initial third phase install
Some places have been changed to return FILE_DOES_NOT_EXIST, everything
else just returns 0. FastFAT driver from MS does the same (tm),
so I'm not going to have a big research here.
CORE-16623
Co-authored-by: Suraj K Suresh <kssuraj15@gmail.com>