chore: add specific create-nullifier example #96

Job	Run time
create-and-update	13m 42s
counter/anchor	21m 37s
basic-operations/anchor/reinit	13m 42s
basic-operations/anchor/create	13m 43s
basic-operations/anchor/burn	12m 46s
basic-operations/anchor/close	12m 40s
basic-operations/anchor/update	12m 41s
basic-operations/anchor/create-nullifier	21m 35s
	2h 2m 26s

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