Rename @InfiniteStream to @Tailable [DATAMONGO-1667]

[spring-projects-issues]

Mark Paluch opened DATAMONGO-1667 and commented

@InfiniteStream is used on reactive repository query methods to create tailable cursors which is not obvious from the annotation name. It should be rather named @Tailable to reflect the intent. An infinite stream is a more generic concept that can be achieved in many ways but on store-level a tailable cursors reflects the implementation means

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Affects: 2.0 M2 (Kay)

Referenced from: pull request #458, and commits 3d765fd, 6200920, b22fd05