Fix auto properties no longer being applied for legacy properties (EntityProperties)

[Wumpf]

What

• Fixes Heuristics for depth image size broken, causing arkit scenes to be unusable #6175

This regressed in #6164. Decided not to roll back things (which would have been hard) but instead reimplement how these properties are passed through and make their role more obvious.

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[teh-cmc]

This highlighted a mishandled edge-case introduced in #6157 caused by the use of TimeInt::MIN instead of TimeInt::STATIC.

Rebased on main and fixed the issue directly here.

[teh-cmc]

Things now work as expected:

But I don't get why the UI says the Backproject meter prop is 1.0. Shouldn't that be 1000.0?

[Wumpf]

oh good catch. more bugs.

[jleibs]

Makes sense. Appreciate the rename since it makes it easier to delete this once the legacy props are gone.