* [Refactor] move model pretrained to backbone init_cfg
* fix some bug and add a test unit
* add
* fix bug
* fix priority
* fix bug
* delete test backbone init cfg
* fix potential bug
* fix potential bug
* add detectors test unit
* fix logic
* add test unit
* fix
* Add upsample_cfg support in FPN
* small fix
* Add multiple extra conv sources
* small logical fix
* Add neck tests for fpn
* Add neck tests for fpn
* fixed several typos
* resolved issues
* Removed extra_convs_source option
* added necks to apis.rst
* change according to comments
* add bbox_fields to expand and min iou crop
* reconfigured configs
* small fix
* added test for random crop and min iou random crop
* small change
* added valid_inds for masks in random crop according to #2802
* added config unit test
* deleted nas fpn config test
* revise according to comments
* add img_fields check in transform.py and test_transform.py
* Added notes for random crop and min iou random crop
* Added notes for random crop and min iou random crop
* Add bbox2label and bbox2mask key correspondence
* Update nas-fpn model
Add fsaf log
Haian Huang(深度眸)
Guangchen Lin
BigDong
杨培文 (Yang Peiwen)
RangiLyu
Jerry Jiarui XU
LXXXXR
Wang Xinjiang
kinredon