Win32 init time

i’ve noticed that the call to SDL_INIT_VIDEO takes a bit
longer than i expect on win32. this is with SDL 1.1.2 and
win98. i did some preliminary checking by placing some
verbose printing in the DX5_VideoInit routine.

using this scientific method, i’ve found that a really
big chunk of time is spent in each call to EnumDisplayModes.
i am planning to rewrite this enumeration section to only
make one call to EnumDisplayModes which should really speed
up the whole initialization process.

my plan is to build a quick linkedlist of mode resolutions
during the call to EnumDisplayModes, then transfer that
info to the SDL_modelist arrays. unless someone with more
insight has a better idea (thanks)