Read video duration on scan

[aminnausin]

Use https://github.com/protonemedia/laravel-ffmpeg and read video duration in seconds

• Command: ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 FILE.mp4
• Run times: On scan if ffmpeg is installed and regressively with a new VerifyFileData job

[aminnausin]

Need to add columns to tables too