win32: fallback for SetThreadErrorMode()
win32: fallback for SetThreadErrorMode()

SetThreadErrorMode() is necessary for correct plugin loader semantics,
but it is only available on Windows 7 and later, so it needs to be
loaded at run-time if it is to be used. On Windows 2008 and older,
a fallback is provided to the extent possible.

xkfz007/vlc,shyamalschandra/vlc,shyamalschandra/vlc,xkfz007/vlc,vlc-mirror/vlc,vlc-mirror/vlc,shyamalschandra/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,vlc-mirror/vlc,vlc-mirror/vlc,shyamalschandra/vlc,shyamalschandra/vlc,shyamalschandra/vlc,shyamalschandra/vlc,vlc-mirror/vlc,vlc-mirror/vlc,xkfz007/vlc,vlc-mirror/vlc