* Mv wrappers into bricks and use wrappers in registry
* resolve import issues
* fix import issues
* set nn op forward to torch 1.6.1
* fix CI bug and add warning
* Fix CI by using patch mock
* mv warnings inside deprecated module's initialization
* Support to split batched_nms when box number is too large
* mv data from gpu to cpu
* Set split_thr through nms_cfg
* clean code
* Update motivation in docstring
* fix typos
* migrate op
* migrate unittest
* update build no torch
* add back use_torch_vision for roi align
* fix type and unit test
* ignore test logging when no torch
* fix no torch ci test
* skip test registry
* remove coverage report when no torch
* fix mac ci order
* install latest pillow when no torch
* mv convws to brisk
* update actiion
* remove 1.3 cuda
* reorder
* add no torch
* fixed version
* make py3.8 on pt1.5
* make py3.8 on pt1.5
* remove torch 1.3
* disable py3.8
* pip
* merge master with cuda compile fix
* add cpu roi align
* fixed test
* fixed no torch
* add CUDA_ARGS
* use one line
* gencode=61
* seperate jobs
* update lint
* use parametrize test
* formart and rename
* unit test for all
* add ext ops, support parrots
* fix lint
* fix lint
* update op from mmdetection
* support non-pytorch env
* fix import bug
* test not import mmcv.op
* rename mmcv.op to mmcv.ops
* fix compile warning
* 1. fix syncbn warning in pytorch 1.5
2. support only cpu compile
3. add point_sample from mmdet
* fix text bug
* update docstrings
* fix line endings
* minor updates
* remove non_local from ops
* bug fix for nonlocal2d
* rename ops_ext to _ext and _ext to _flow_warp_ext
* update the doc
* try clang-format github action
* fix github action
* add ops to api.rst
* fix cpp format
* fix clang format issues
* remove .clang-format
Co-authored-by: Kai Chen <chenkaidev@gmail.com>