Fixes CORE-19505 'game "Hover!" from rapps does not start anymore'
It failed showing a msgbox
"There was an error allocating memory in Hover!"
the regression was introduced by
0.4.15-dev-5602-g c47506a5f4
Add missing heap initialization in DllMain entrypoints of msvcrt20.dll and msvcrt40.dll,
similarly to as it is done in msvcrt.dll (CRT).
The msvcrt.dll (CRT) initialization code was updated properly
during the last winesync, accordingly to the new changes,
but msvcrt20.dll/msvcrt40.dll one was not. So update it too.
This fixes the crash of HOVER 1.0 game from Rapps when
it tries to allocate a dynamical memory from the
unitialized heap via malloc() function exported from our msvcrt20.dll.
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.
