Add @DataCouchbaseTest and AutoConfigureCouchbase [DATACOUCH-643]

[spring-projects-issues]

hantsy opened DATACOUCH-643 and commented

Like @DataJpaTest, @DataMongoTest, add @DataCouchbaseTest and @AutoConfigureCouchbase to improve couchbase testing ability

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Affects: 4.1 GA (2020.0.0)