[FEA]: Implement CUDA backend for parallel `cuda::std::partition`

[miscco]

Is this a duplicate?

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Area

libcu++

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

We want to implement a CUDA backend for the following algorithms:

• std::partition see https://en.cppreference.com/w/cpp/algorithm/partition.html
• std::partition_copy see https://en.cppreference.com/w/cpp/algorithm/partition_copy.html

Describe the solution you'd like

The should reuse the device_select CUB backend

Describe alternatives you've considered

No response

Additional context

No response