FFMpeg-Compressor: Switch to other ffmpeg lib, add CRF parameter for video

FFMpeg-Compressor: Add SkipVideo parameter

FFMpeg-Compressor: Add resolution scaledown

FFMpeg-Compressor: New config default parameters

Multiplatform shebangs

FFMpeg-Compressor: Restructure config file

FFMpeg-Compressor: Ignoring the slash at the end of the folder path

FFMpeg-Compressor: Update README.md

Compilation script

FFMpeg-Compressor: UNIX binary