[FEA]: Add functions to cub::WarpScan that operate on array of elements

### Is this a duplicate?

- [x] I confirmed there appear to be no [duplicate issues](https://github.com/NVIDIA/cccl/issues) for this request and that I agree to the [Code of Conduct](CODE_OF_CONDUCT.md)

### Area

CUB

### Is your feature request related to a problem? Please describe.

For example, `cub::BlockScan` provides
```
ExclusiveSum(
T (&input)[ITEMS_PER_THREAD],
T (&output)[ITEMS_PER_THREAD]
)
```

but `cub::WarpScan` does not.

### Describe the solution you'd like

Provide functions that operate on multiple elements.

### Describe alternatives you've considered

_No response_

### Additional context

_No response_