perf(hstr): Make `atom!` macro more CPU friendly #120

Job	Run time
Check license of dependencies	57s
Cargo fmt	15s
Cargo clippy	1m 2s
Check (ubuntu-latest)	3m 22s
Check (macos-latest)	2m 59s
Cargo test	1m 23s
Check (windows-latest)	4m 15s
Done	1s
Publish	0s
	14m 14s

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