[Enhance] Filter out bboxes out of scale range in test-time augmentation.

[jbwang1997]

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Motivation

Filter out bboxes out of scale range in test-time augmentation.

Modification

Add a new key named obj_range in test-time augmentation. Filter out bboxes by areas in merge_aug_bboxes. Release dyhead model with tta.

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repos? If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

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.

[codecov[bot]]

Codecov Report

Merging #7993 (f4a816b) into dev (7b03639) will decrease coverage by 0.00%. The diff coverage is 17.39%.

:exclamation: Current head f4a816b differs from pull request most recent head 1ab0f1a. Consider uploading reports for the commit 1ab0f1a to get more accurate results

@@            Coverage Diff             @@
##              dev    #7993      +/-   ##
==========================================
- Coverage   64.49%   64.48%   -0.01%     
==========================================
  Files         360      360              
  Lines       29233    29251      +18     
  Branches     4954     4957       +3     
==========================================
+ Hits        18854    18863       +9     
- Misses       9373     9383      +10     
+ Partials     1006     1005       -1     

Flag	Coverage Δ
unittests	64.46% <17.39%> (-0.02%)	:arrow_down:

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Impacted Files	Coverage Δ
mmdet/models/dense_heads/dense_test_mixins.py	38.04% <0.00%> (-5.17%)	:arrow_down:
mmdet/datasets/pipelines/test_time_aug.py	88.67% <50.00%> (-6.98%)	:arrow_down:
mmdet/models/roi_heads/mask_heads/maskiou_head.py	89.65% <0.00%> (+2.29%)	:arrow_up:
mmdet/core/bbox/assigners/sim_ota_assigner.py	83.63% <0.00%> (+3.63%)	:arrow_up:

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