Better registration support for a wide range of third-party hardware

[uniartisan]

What does this PR do?

Thank you to the lightning team for providing such an easy-to-use, clearly designed library.

The pr draft hopes to provide better registration support for a wide range of third-party hardware, and the pr is designed to integrate third-party hardware with minimal intrusive changes, including intel XPU, Huawei Ascend NPU, Cambrian, Moorethreads, and more.

Fixes #<issue_number>

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📚 Documentation preview 📚: https://pytorch-lightning--20349.org.readthedocs.build/en/20349/

[uniartisan]

Examples here: https://github.com/uniartisan/RWKV-PEFT/blob/device-enhance/train.py#L499

There are a lot of things to be checked, I will try to do it later and make it more clear in documentation

[codecov]

Codecov Report

Attention: Patch coverage is 76.11940% with 16 lines in your changes missing coverage. Please review.

Project coverage is 88%. Comparing base (06a8d5b) to head (11b79e0).

Additional details and impacted files

@@           Coverage Diff            @@
##           master   #20349    +/-   ##
========================================
- Coverage      89%      88%    -1%     
========================================
  Files         267      267            
  Lines       23065    23116    +51     
========================================
- Hits        20574    20423   -151     
- Misses       2491     2693   +202