* [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
* clean op
* clean
* update build.yml
* fix setup
* change ci mmcv version
* change ci mmcv version
* add install pre-build mmcv instructions
* update mmcv url, move some unnit tests to mmcv
* update ci mmcv
* test
* test
* test
* fix unit test
* fix unit test
* fix onnx script
* update mmcv url
* fix typo
* fix some doc
* Bump version
* resolve comments
* Fix version bug
Co-authored-by: ZwwWayne <wayne.zw@outlook.com>
* 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
* reconfigured configs