Update python WCC to leverage the CAPI

[jnke2016]

The CAPI has a weakly connected component version that can be leverage by the PLC and python API. This PR:

1. Add a PLC implementation of WCC
2. Update the python API to leverage the PLC API
3. Remove the legacy implementation
4. Update both the python and the PLC tests
5. Add PLC API to to create a graph from a CSR representation
6. Update docstrings

closes #2509
closes #2496

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (branch-22.12@e4ed302). Click here to learn what that means.
Patch has no changes to coverable lines.

Additional details and impacted files

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[rlratzel]

@gpucibot merge