Add unsafe from_storage apis (#3156) #18

Job	Run time
Check (windows-latest, stable)	3m 27s
Check (macOS-latest, stable)	1m 47s
Check (ubuntu-latest, stable)	1m 42s
Test Suite (ubuntu-latest, stable)	5m 12s
Test Suite (windows-latest, stable)	11m 13s
Clippy	2m 11s
Rustfmt	17s
Test Suite (macOS-latest, stable)	5m 14s
	31m 3s

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