[pierotofy]

• Adds a GPX parser to extract GPS data for synced video frames
• Improves the video frame extractor by using a blur window instead of absolute thresholds. This guarantees that no gaps are ever present in the final extracted frames. Also removes the two-pass scan and turns it into a single pass (significantly speeding up the process).
• Automatically extract .SRT subtitles when they are embedded in the video
• Closes Add ODX_LOW_MEMORY or ODX_PC_TILE #50
• Refactors opendm --> modules.