refactor: add AEAD prove/verify + tag methods #165

Job	Run time
Build and test (components/integration-tests)	1m 21s
Build and test (components/uid-mux)	52s
Build and test (components/cipher)	1m 45s
Build and test (components/universal-hash)	1m 14s
Build and test (components/aead)	1m 23s
Build and test (components/key-exchange)	1m 21s
Build and test (components/point-addition)	56s
Build and test (components/prf)	2m 4s
Build and test (components/tls)	2m 32s
Build and test (tlsn)	3m 54s
Build and test (notary-server)	4m 46s
	22m 8s

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