Continue tune up of QR code parsing tool for reproflow-data-sync purposes

[vmdocua]

To work on #13 issue and #14 issue some polishing in parse_wQR.py tool still necessary:

• generate_qrinfo.sh script working with https://github.com/ReproNim/reproflow-data-sync data structure to generate QR codes JSONL info under timing-reprostim-videos folder.
• Consider adding REPROSTIM-METADATA-JSON data in jsonl output as separate line or integrated as fields.
• Extend parse_wQR.py script with INFO mode to dump videos information like duration, bitrate, size in JSON format to better understand recorded videos status when tunning ffmpeg options.

Possible ideas/issues for next tasks in this area:

• Use information from .mkv.log file marked with REPROSTIM-METADATA-JSON magic words to extract video metadata like video start/end timestamp rather than parsing .mkv file name (WiP).