Blu-ray 2.9.0

1. [Bug Fix] Fix taking borken screenshots for UHD Blu-ray disks
2. [Bug Fix] Downgrade BDinfoCLI to 0.7.3 to fix issue that BDinfo doesn't work
3. [Feature] Use nconvert to compress png srceenshots
4. [Feature] Save BDinfo Quick Summary Report
5. [Bug Fix] Fix nconvert installation issue
6. [Bug Fix] Fix BDinfo installation issue
7. [UI] Add more English usage guides within script
8. [UI] Improve Debug mode
9. [UI] trap cancel SIGNIT
10. [Feature] Add --no-convert option to skip png compression