Is your feature request related to a problem? Please describe.
when creating a shuffled iterable dataset

cache_datasets:
  - _target_: ShuffleBuffer
    data:
      _target_: CacheDataset
      data: "@datalist"
      transform: [email protected]_random_state(123)
      hash_as_key: true
    seed: 1

the ShuffleBuffer supports only a single epoch of datalist
would be great to add epochs argument to the class for multiple epochs or infinite epochs.

Alternative solutions are:

• extending the data list: monai.data.utils.resample_datalist(@datalist, epochs)
• using the itertools: itertools.cycle(@data)

both solutions are not efficiently using the iterator.