DataSources batch different geometry types together

[hpinkos]

Instead of creating one GeometryVisualizer per geometry type, we now create one GeometryVisualizer that handles all of the geometry types. This allows us to batch more geometries together at the DataSource level.

This does include some breaking changes because params changed for GeometryVisualizer and GeometryUpdater

Other details:

• Create PolylineVisualizer for handling polylines
• Separate out polyline specific logic from GeometryVisualizer
• GeometryVisualizer handles box, corridor, ellipse, ellipsoid, plane, polygon, polyline volume, rectangle and wall
• Add <Type>GeometryUpdater.id. This is needed so a batch can include multiple geometry related to the same entity.
• Minor code cleanup

[cesium-concierge]

@hpinkos, thanks for the pull request! Maintainers, we have a signed CLA from @hpinkos, so you can review this at any time.

⚠️ I noticed that CHANGES.md has not been updated. If this change updates the public API in any way, fixes a bug, or makes any non-trivial update, please add a bullet point to CHANGES.md and comment on this pull request so we know it was updated. For more info, see the Pull Request Guidelines.

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[mramato]

Thanks @hpinkos. I actually don't have any comments other than what we discussed offline for future PRs.

I think this will enable some pretty good additional optimizations in the future.