Reverts "Revert "checks for duplicate instances using the new ContactInfo (#2506)"" #8804

Job	Run time
check	4m 18s
cargo-test-sbf (token/program)	9m 47s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	15m 36s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	10m 18s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	20m 45s
cargo-test-sbf (token-upgrade/program)	9m 52s
test (single-pool/cli, single-pool/program)	17m 34s
cargo-test-sbf (feature-proposal/program)	8m 48s
test (token-upgrade/cli, token-upgrade/program)	18m 8s
cargo-test-sbf (governance/addin-mock/program, governance/program)	13m 38s
cargo-test-sbf (memo/program)	8m 56s
cargo-test-sbf (name-service/program)	9m 27s
cargo-test-sbf (stake-pool/program)	12m 44s
cargo-test-sbf (single-pool/program)	10m 1s
	2h 49m 52s

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