Setup real dashcam logging

[adeebshihadeh]

This project is to maximize the usable dashcam storage space on a comma 3X. Currently, it's tuned for maximum training/debuggability. We should be able to tradeoff a bit of that for a great dashcam experience.

.hevc and rlog are needed for training and debugging, but they also take up most of the device's storage. They are overkill for dashcam purposes, but the current qcamera isn't quite sufficient either.

Some concrete TODOs

• deleter: setup two classes of files "dashcam" and "training"
• deleter: prioritize "dashcam" segments
• logger: bump up qcamera size to be great dashcam footage
• logger: setup qcamera streams for the wide and driver cams

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Here's the current size breakdown:

2.2M    qcamera.ts
2.2M    qlog
56M     rlog
72M     dcamera.hevc
72M     fcamera.hevc
73M     ecamera.hevc