* Remove Apache-2.0 license header from ONNX files that were originally BSD 3-clause licensed and properly list then under BSD 3-clause section in LICENSE.

* Remove 3rdparty/mkldnn/src/common/primitive_hashing.hpp from LICENSE under Boost License section, since it is clearly Apache 2.0 licensed.

* Clarify Caffe license to BSD 2-clause with Caffe extensions.

* Clarify Caffe license to BSD 2-clause with Caffe extensions.

* Remove duplicate file, should only be in BSD 3-clause section.

* Update LICENSE with latest from 3rdparty/mkldnn/THIRD-PARTY-PROGRAMS

* Sort files under MIT license. Remove references to generic licenses.

* Remove incorrectly added Apache header on MIT-licensed files.

* Sort lines in ASF-2.0 licensed list.

* Add license text in licenses/ to fulfill binary distribution requirements.

* Remove copyright by contributors line from ASF-licensed file.

* Fix rat-excludes and licensecheck exclude list.

* Error out and fail if license_header.py tool detects multiple licenses in a file.

* Move LayerNormCPUKernel function to own file, since it is licensed under MIT. Update LICENSE to reflect this.

* Remove LayerNormCPUKernel from layer_norm.cc, it is now in layer_norm_cpu.h.

* Add header guard, fix first line to pass lint.

* Update skywalking-eyes config based on current LICENSE, add layer_norm_cpu.h to whitelist.

* Rename license file for layer_norm_cpu.h

…20677)

* [v1.9.x] CI fixes (apache#20648)

* Update openssl package in ubuntu_core.sh (used in ubuntu 16.04 images) to avoid bug triggered by let's encrypt expired ca cert.

* Reduce number of parallel docker builds we run at once to 2, since there are multiple jobs (on different branches) running at the same time.

* Use different mirror to download binutils to avoid expired let's encrypt CA cert.

* [CI] UPgrade windows CI

* fix python 3.8 ctypes dll load with windows (apache#19236)

Co-authored-by: barry-jin <[email protected]>
Co-authored-by: Hu Shiwen <[email protected]>

…license files in licenses/*. Update license for code contributed/derived from https://github.com/msracver/Deformable-ConvNets which is now MIT licensed and update LICENSE to reflect this. Add references for original code with github revision to MIT-licensed files.