feat: add ordered db feature gate #66

Job	Run time
check no_std	25s
check	24s
check no_std optimism	25s
check serde	30s
clippy	1m 6s
check std	35s
docs	1m 21s
fmt	11s
test stable --no-default-features	57s
test stable	53s
test stable --features="all, scroll"	50s
test stable --features="all, optimism"	1m 39s
test beta --no-default-features	1m 38s
test beta	58s
test beta --features="all, scroll"	48s
test beta --features="all, optimism"	1m 31s
test nightly --no-default-features	47s
test nightly	48s
test nightly --features="all, scroll"	50s
test nightly --features="all, optimism"	1m 24s
	18m 0s

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