wip: check for all zeros on startup #10348

Job	Run time
check	4m 48s
cargo-test-sbf (token/program)	7m 8s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	18m 0s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	16m 39s
test (single-pool/cli, single-pool/program)	17m 49s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	10m 53s
test (token-upgrade/cli, token-upgrade/program)	16m 38s
cargo-test-sbf (token-upgrade/program)	7m 18s
cargo-test-sbf (feature-proposal/program)	7m 2s
cargo-test-sbf (governance/addin-mock/program, governance/program)	13m 19s
cargo-test-sbf (memo/program)	8m 55s
cargo-test-sbf (name-service/program)	7m 25s
cargo-test-sbf (stake-pool/program)	11m 53s
cargo-test-sbf (single-pool/program)	10m 19s
	2h 38m 6s

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