cleanup(db): Give forward and reverse database iterators explicit names #432

Job	Run time
Generate crates matrix	11s
Check crates matrix	8s
Build zebrad crate	37m 24s
Build zebra-utils crate	16m 55s
Build zebra-test crate	1m 34s
Build zebra-state crate	21m 42s
Build zebra-script crate	4m 2s
Build zebra-scan crate	14m 0s
Build zebra-rpc crate	22m 19s
Build zebra-node-services crate	3m 33s
Build zebra-network crate	7m 28s
Build zebra-consensus crate	18m 32s
Build zebra-chain crate	5m 7s
Build tower-fallback crate	1m 2s
Build tower-batch-control crate	12m 53s
Open or update issues for building crates individually failures	0s
	2h 46m 50s

Provide feedback