Extract hard-coded subtitles from video streams

Documentation for my project can be seen here.

Description

My project was to add the capability of extracting burned-in (hard) subtitles from videos to CCExtractor. As of now, CCExtractor works by only extracting caption data in the video if it is present in specific structures in the stream, and skips the actual video data (pixels) completely. However a lot of videos have hard subtitles burned into them, extracting which is a computer vision problem, and something which CCExtractor did not earlier have the capability to process.