Introduce SchedulingStateMachine for unified scheduler [NO-MERGE&REVIEW-ONLY-MODE] #8067

Job	Run time
check	0s
test	0s
cargo-test-sbf (token/program)	7m 44s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	13m 14s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	9m 55s
cargo-test-sbf (token-upgrade/program)	7m 43s
cargo-test-sbf (feature-proposal/program)	9m 44s
cargo-test-sbf (governance/addin-mock/program, governance/program)	13m 8s
cargo-test-sbf (memo/program)	7m 37s
cargo-test-sbf (name-service/program)	7m 25s
cargo-test-sbf (stake-pool/program)	10m 26s
cargo-test-sbf (single-pool/program)	9m 57s
	1h 36m 53s

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