Migrate black box

[BD103]

Original PR: bevyengine#16980

This is a test to see how Codspeed reacts to benchmarking pull requests.

Originally attempted in #5, but CI was broken so I'm opening this to force it to run.

[codspeed-hq]

CodSpeed Performance Report

Merging #6 will degrade performances by 22.84%

_{Comparing BD103:migrate-black-box (49feae5) with main (bfc1fff)}

Summary

⚡ 11 improvements
❌ 11 (👁 11) regressions
✅ 625 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	BD103:migrate-black-box	Change
⚡	Table	621.6 µs	552.2 µs	+12.58%
⚡	Table	63.1 µs	56.1 µs	+12.38%
⚡	Table	621.6 µs	552.1 µs	+12.59%
⚡	Table	63.1 µs	56.1 µs	+12.5%
👁	500_schedule_noconstraints	39 ms	46.4 ms	-15.96%
👁	MultiThreaded	741.9 ns	829.4 ns	-10.55%
👁	SingleThreaded	1.2 µs	1.3 µs	-11.2%
⚡	001_systems	27.2 µs	23.7 µs	+14.67%
👁	0_entities	798.3 ns	915 ns	-12.75%
⚡	entity_set_build[100]	5.9 µs	5.2 µs	+13.49%
⚡	50000_entities_table	174.5 µs	153.5 µs	+13.65%
⚡	50000_entities_table	181.4 µs	139.7 µs	+29.85%
⚡	cubic_position_Vec3A	89.2 ns	60.3 ns	+47.93%
⚡	trait_object	182.2 ns	153.1 ns	+19.06%
⚡	Generic[32]	616.1 ns	557.8 ns	+10.46%
👁	many_maps_iter	150.1 ms	194.6 ms	-22.84%
👁	threads[16]	150.2 ms	194.7 ms	-22.83%
👁	threads[1]	150.2 ms	194.7 ms	-22.83%
👁	threads[2]	150.2 ms	194.7 ms	-22.84%
👁	threads[32]	150.2 ms	194.7 ms	-22.83%
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.