Merge pull request #1729 in FS/freeswitch from…

Merge pull request #1729 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11851-reduce-libvpx-and-ffmpeg-compile-time-on-windows to master * commit 'fe7d5e29': FS-11851: [Build-System] Significantly reduce libvpx and ffmpeg compile time on Windows.

Merge pull request #1729 in FS/freeswitch from…
Merge pull request #1729 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11851-reduce-libvpx-and-ffmpeg-compile-time-on-windows to master * commit 'fe7d5e29': FS-11851: [Build-System] Significantly reduce libvpx and ffmpeg compile time on Windows.
42e3c96d · Andrey Volk · c31fa89c · fe7d5e29 · 42e3c96d · 42e3c96d
--- a/libs/win32/ffmpeg/ffmpeg.2017.vcxproj
+++ b/libs/win32/ffmpeg/ffmpeg.2017.vcxproj
--- a/libs/win32/libvpx/libvpx.2017.vcxproj
+++ b/libs/win32/libvpx/libvpx.2017.vcxproj