* remove avcpp patch that was accepted upstream.

revert port version

* update versions

* [ffmpeg] use ffbuild/config.mak to get dependencies

* [ffmpeg] bump port version

* [ffmpeg] x-add-version

* [ffmpeg] fix dependency issue on x64-linux

* [ffmpeg] x-add-version

* [ffmpeg] link order fix on linux

* [ffmpeg] x-add-version

* [ffmpeg] bump port version

* [ffmpeg] x-add-version

* [ffmpeg] exclude -lgcc and -lgcc_s (causes issues on azure for unknown reasons)

* [ffmpeg] x-add-version

* [ffmpeg] handle -lgcc and -lgcc_s appropriately

* [ffmpeg] x-add-version

* [ffmpeg] use x_vcpkg_pkgconfig_get_modules to get info, added some more fixes to generated for pkgconfig files

* [ffmpeg] report dependencies (for now, helps debugging)

* [vcpkg-pkgconfig-get-modules] bump port version

* [ffmpeg] [vcpkg-pkgconfig-get-modules] x-add-version

* [ffmpeg] fix variant issue

* [ffmpeg] x-add-version

* [ffmpeg] reformat manifest

* [ffmpeg] x-add-version

* [ffmpeg] remove duplicate avfilter library from dependencies

* [ffmpeg] fix -pthread / -pthreads on linux

* [ffmpeg] x-add-version

* [ffmpeg] fix dynamic builds when no libraries need to be linked

* [ffmpeg] x-add-version

* [ffmpeg] disable openh264 on uwp when building all

* [ffmpeg] x-add-version

* [avcpp] fix uwp build failure due to deprecations treated as errors

* [avcpp] bump port version

* [avcpp] x-add-version

* [avcpp] smaller patch

* [avcpp] x-add-version

* [ffmpeg] x-add-version

* add avcpp port

* add avcpp

* apply code review comments

* update versions