[Feature Request] PrioritizedSliceSampler

[Cadene]

Motivation

This type of sampling is used in the literature:
https://github.com/fyhMer/fowm/blob/main/src/algorithm/helper.py#L504-L510
https://github.com/fyhMer/fowm/blob/main/src/algorithm/tdmpc.py#L334-L337

Solution

Add PrioritizedSliceSampler which inherits from PrioritizedSampler and SliceSampler.

Alternatives

Adding prioritized arguments in init of SliceSampler to avoid multiple inheritance.

Additional context

Discussed with @vmoens

Checklist

• I have checked that there is no similar issue in the repo (required)