segment refactor + Circle [WIP]

[Irev-Dev]

made redundant by #3859 and #3860

Because I'm doing some ractoring too, I'll like break this into two separate PRs and close this one when they're ready.

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Remaining tasks

• Draft circle looks funny
• Cursor should be crosshair when circle tool is equipped
• Console error when doing the second click for adding the circle Expected [..] to be a sketchGroup, but it wasn't.
• Extra segment handle is appearing when it shouldn't
• Fix sketch mode tear down weirdness
• Disable line tool after rectangle or circle
• Overlays [absX, absY, and radius]
• Check line thickness and handles scale correctly with zoom
• Check exiting out of the sketch after the first click but before the second doesn't do anything weird
• fix error when dragging circle's circumference
• Check three dot menu works for circle, (probably need to dump delete short term until multi-profile sketches)
• Figure what's going on with the cargo tests
• see if it's worth breaking refactors into separate PR

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Tests

• draft circle should look right (snapshot)
• Can create a new sketch and put a circle on it.
• Can edit an existing circle changing its center and radius
• test for the overlay

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