storage: Add post challenge reading metrics #201

Job	Run time
ci-lint	17s
build-debug	4m 42s
build-2k	4m 26s
build-calibnet	4m 38s
build-forest	4m 35s
build-mainnet	4m 26s
gen-check	5m 24s
gofmt	16s
lint	3m 9s
mod-tidy-check	40s
setup-params	5s
test (test-itest-curio, ./itests/curio_test.go)	5m 9s
test (test-all, `go list ./... \| grep -v curio/itests`)	2m 46s
test (test-itest-harmonyDB, ./itests/harmonydb_test.go)	3m 37s
test (test-itest-alertnow, ./itests/alertnow_test.go)	1m 47s
	45m 57s

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