refactor(nns): Improve range neurons performance for stable store (#2… #515

Job	Run time
Bazel System Test Nightly	40m 25s
Bazel System Test Hotfix	47m 58s
Bazel System Test Staging	19m 50s
Dependency Scan for Release	32s
Setting up guest os qualification pipeline	8s
CI Main / Bazel Build Fuzzers	2m 41s
CI Main / Bazel Test All	31m 32s
CI Main / Bazel Build All Config Check	4m 11s
CI Main / Bazel Test macOS Intel	32m 43s
CI Main / Bazel Build Fuzzers AFL	2m 35s
CI Main / Build IC	18m 4s
CI Main / Cargo Clippy Linux	18s
CI Main / Python CI Tests	2m 1s
CI Main / Bazel Test Coverage	0s
CI Main / Cargo Build Release Linux	18s
Qualifying aba60ffbc46acfc8990bf4d5685c1360bd7026b9 -> 4bd8e1d8430ee17c7e3be47732d1786074ecb592	1h 48m 28s
Qualifying 6fb2fd1f0512c81578ea0d1984c48851e6c08b0d -> 4bd8e1d8430ee17c7e3be47732d1786074ecb592	1h 42m 4s
CI Main / Build Determinism	0s
	6h 53m 48s

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