Consolidated infra changes from RSS Demo

[egordon]

Describe this pull request. Link to relevant GitHub issues, if any.

1. Add better logging.
2. Make Auto-Continue the default for DetectingFace
3. Allow for changing number of MaskButtons between renders (e.g., because if the masks are too close to the edge of the screen, SegmentFromPoint might return fewer than 3 masks)

Explain how this pull request was tested, including but not limited to the below checkmarks.

Tested over the course of the 1/22-1/24 user studies.

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