token 2022: add `GroupMemberPointer` extension #4036

Job	Run time
cargo-build-test-cli	19m 20s
cargo-test-sbf	13m 13s
cargo-test-sbf-associated-token-account	10m 51s
cargo-test-sbf-transfer-hook	8m 25s
cargo-test-sbf-twoxtx	13m 27s
cargo-test-token-2022-serde	2m 56s
js-test	10m 45s
cargo-build-test-transfer-hook-cli	12m 13s
	1h 31m 10s

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