Process Video Locally, Accept Multiple video Resolutions and Canvas Recording

[Forchapeatl]

Fixes #418 Combines Process Video Locally , Accept Multiple video Resolutions and Canvas Recording

Related pending milestones

• [ ] canvas assumes wrong div size upon fullscreen exit.
• [ ] image files not loading when after Webrtc is intitialized
• [ ] Relate Canvas resolution to device GPU.
• [ ] Optimize local video files with size greater than 10MB.

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[gitpod-io[bot]]

[Forchapeatl]

I will address these issues separately. Process video locally Closed in relation to https://github.com/publiclab/infragram/pull/445