Unified-selection: batch iModel selection changes

[jasdom]

Changed handleIModelSelectionChange to update selection storage with all changes at once instead of one by one as this improves performance and prevents storage from being unnecessarily cleaned when the same element is selected.

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: a208095c0fe64221953324e539fe9f37664667b4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

| Name | Type | | ------------------------------------- | ----- | | @itwin/unified-selection | Patch | | @itwin/presentation-hierarchies-react | Patch |

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Unified selection benchmark

Benchmark suite	Current: a208095c0fe64221953324e539fe9f37664667b4	Previous: b9598f6702bea0f466abae02378a0c958f8e5fe9	Deviation	Status
hilite 50k elements	1251.07 ms	1197.81 ms	4.4464%	🚨
hilite 50k elements (P95 of main thread blocks)	43 ms	45 ms	-4.4444%	✅
hilite 50k group elements	239.22 ms	241.39 ms	-0.8990%	✅
hilite 50k group elements (P95 of main thread blocks)	31 ms	31 ms	0%	🟰
hilite 1k subjects	47554.71 ms	47428.79 ms	0.2655%	🚨
hilite 1k subjects (P95 of main thread blocks)	28 ms	26 ms	7.6923%	🚨
hilite 50k subcategories	278.2 ms	280.51 ms	-0.8235%	✅
hilite 50k subcategories (P95 of main thread blocks)	32 ms	33 ms	-3.0303%	✅
hilite 50k functional 3D elements	25543.56 ms	26510.05 ms	-3.6457%	✅
hilite 50k functional 3D elements (P95 of main thread blocks)	32 ms	39 ms	-17.9487%	✅
hilite 50k functional 2D elements	6184.68 ms	6091.73 ms	1.5258%	🚨
hilite 50k functional 2D elements (P95 of main thread blocks)	34 ms	37 ms	-8.1081%	✅
compute selection for 50k elements	310.79 ms	309.3 ms	0.4817%	🚨
compute selection for 50k elements (P95 of main thread blocks)	31 ms	31 ms	0%	🟰
compute parent selection for 50k elements	335.33 ms	348.94 ms	-3.9004%	✅
compute parent selection for 50k elements (P95 of main thread blocks)	31 ms	32 ms	-3.1250%	✅
compute top ancestor selection for 50k elements	563.96 ms	561.28 ms	0.4775%	🚨
compute top ancestor selection for 50k elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute category selection for 50k elements	95.14 ms	91.6 ms	3.8646%	🚨
compute category selection for 50k elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute model selection for 50k elements	76.11 ms	90.55 ms	-15.9470%	✅
compute model selection for 50k elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute functional selection for 50k 3D elements	418.56 ms	406.3 ms	3.0175%	🚨
compute functional selection for 50k 3D elements (P95 of main thread blocks)	31 ms	31 ms	0%	🟰
compute parent functional selection for 50k 3D elements	465.45 ms	449.19 ms	3.6198%	🚨
compute parent functional selection for 50k 3D elements (P95 of main thread blocks)	38 ms	31 ms	22.5806%	🚨
compute top ancestor functional selection for 50k 3D elements	1141.11 ms	1147.78 ms	-0.5811%	✅
compute top ancestor functional selection for 50k 3D elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute functional selection for 50k 2D elements	2980.45 ms	3034.42 ms	-1.7786%	✅
compute functional selection for 50k 2D elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute parent functional selection for 50k 2D elements	2998.2 ms	3011.11 ms	-0.4287%	✅
compute parent functional selection for 50k 2D elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨
compute top ancestor functional selection for 50k 2D elements	3080.66 ms	2995.01 ms	2.8598%	🚨
compute top ancestor functional selection for 50k 2D elements (P95 of main thread blocks)	0 ms	0 ms	NaN%	🚨

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