perf: Fixing performance of evented set

[Czaki]

In this PR I have added an option for the combiner function to consume the whole list of tuples at once.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #275 will improve performances by 11.28%

_{Comparing Czaki:speedup_evented_set (0ab5fc5) with main (459828c)}

Summary

⚡ 1 improvements ✅ 65 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	Czaki:speedup_evented_set	Change
⚡	test_create_signal	141.1 µs	126.8 µs	+11.28%

[Czaki]

When developing locally, pre-commit complains about line length, but I do not know how to break type declaration.

Also, mypy report problems with lack of Self (I see that on Ci, it does not happen).

I need to add type casting for reducer to satisfy mypy.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (459828c) 100.00% compared to head (0ab5fc5) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #275 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 23 23 Lines 1898 1906 +8 ========================================= + Hits 1898 1906 +8 ```

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[Czaki]

(Should I add benchmarks to tests/test_bench)?

[tlambert03]

(Should I add benchmarks to tests/test_bench)?

it's ok. the asv benchmarks are nice because they can run retrospectively (and show the speedup you gained here), whereas codspeed and test_bench can only start measuring going forward. I like codspeed in general, but the lack of retrospective monitoring is a bummer, so the one you added to asv is good enough