[Feature] Support mmdet with NPU backend

[wangjiangben-hw]

Motivation

Added NPU(ascending device) support in mmdet

Modification

The main modification points are:

1. add NPUDataParallel、NPUDistributedDataParallel

BC-breaking (Optional)

None

Use cases (Optional)

Provides configuration information that can be worked on the NPU

config	map	map_gpu
configs/fcos/fcos_r50_caffe_fpn_gn-head_1x_bs8x8_coco.py	36.2	36.1
configs/ssd/ssd300_coco_fp16.py	25.6	25.5

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[CLAassistant]

All committers have signed the CLA.

[ZwwWayne]

Hi @wangjiangben-hw

Thanks for your kind PR. It seems that CLA is not signed. Could you sign the CLA so that eventually we could merge this PR after review? You can check the contents and follow the instruction in the communication box shown as below

[wangjiangben-hw]

Hi @wangjiangben-hw

Thanks for your kind PR. It seems that CLA is not signed. Could you sign the CLA so that eventually we could merge this PR after review? You can check the contents and follow the instruction in the communication box shown as below

done

[codecov]

Codecov Report

Base: 64.18% // Head: 64.16% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (0ad58c5) compared to base (bea71f0).
Patch coverage: 6.66% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #9267      +/-   ##
==========================================
- Coverage   64.18%   64.16%   -0.02%     
==========================================
  Files         361      361              
  Lines       29557    29583      +26     
  Branches     5027     5033       +6     
==========================================
+ Hits        18972    18983      +11     
- Misses       9580     9591      +11     
- Partials     1005     1009       +4     

Flag	Coverage Δ
unittests	64.14% <6.66%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmdet/apis/inference.py	47.00% <0.00%> (-1.67%)	⬇️
mmdet/apis/train.py	13.40% <0.00%> (-0.29%)	⬇️
mmdet/utils/util_distribution.py	22.50% <5.88%> (-7.13%)	⬇️
mmdet/core/data_structures/general_data.py	82.55% <14.28%> (-3.37%)	⬇️
mmdet/core/bbox/samplers/random_sampler.py	75.00% <0.00%> (-5.56%)	⬇️
mmdet/models/dense_heads/corner_head.py	69.72% <0.00%> (+1.38%)	⬆️
mmdet/core/bbox/assigners/sim_ota_assigner.py	83.63% <0.00%> (+3.63%)	⬆️
mmdet/models/detectors/cornernet.py	100.00% <0.00%> (+5.12%)	⬆️

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