Add the ability to support static ffmpeg with static third party dependencies for the ffmpeg media plugin

Now ffmpegmediaplugin depends on next ffmpeg modules
FFmpeg::avformat
FFmpeg::avcodec
FFmpeg::swresample
FFmpeg::swscale
FFmpeg::avutil

but it is not enough for static ffmpeg with static dependencies
for example conan package(https://conan.io/center/recipes/ffmpeg?version=5.0.3) 

Would be nice to have this possibility