Added Module definition File to linker input for all configurations,
previously only added to debug as spotted by @ripieces Also changed the
relative pathing to $(ProjectDir)..\..\utils\smdlexp\smdlexp.def ->
Cleaner and makes more sense :)
Added a relative path to the required Module definition File smdlexp.def
found in halflife\utils\smdlexp
Although the project will compile fine without this step, 3DSMAX will
fail to load the plug-in giving errors such as "smdlexp.dle doesn't
implement LibVersion"
It seems that smdlexp.def needs to be explicitly defined in the vcxproj
in order to work.
