License - Add license headers from Microsoft for examples

[yzygitzh]

Adds MIT license header for Microsoft created files in examples.

[Copilot]

Pull Request Overview

This PR adds MIT license headers to Microsoft-created example files across the repository. The purpose is to properly attribute copyright and licensing for example code files that were originally created by Microsoft.

• Adds standardized MIT license headers to 13 example files
• Ensures consistent copyright attribution format across all files
• Maintains existing code functionality while adding proper licensing

Reviewed Changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
examples/pytorch_cifar10/src/init.sh	Added MIT license header to shell script
examples/pytorch_cifar10/src/horovod_cifar.py	Added MIT license header to Python file
examples/pytorch_cifar10/src/cifar.py	Added MIT license header to Python file
examples/mnist_500_tasks/src/mnist_lr_500.py	Added MIT license header to Python file
examples/mnist_500_tasks/src/get_results.py	Added MIT license header to Python file
examples/MXNet_cifar10/src/train_cifar10.py	Added MIT license header to Python file
examples/Dockerfiles/autobuild_docker/paitest.py	Added MIT license header to Python file
examples/Distributed-example/cifar10-single-node-gpus-cpu-DP.py	Added MIT license header to Python file
examples/Distributed-example/cifar10-single-mul-DDP-nccl-gloo.py	Added MIT license header to Python file
examples/Distributed-example/cifar10-single-mul-DDP-nccl-gloo-Apex-mixed.py	Added MIT license header to Python file
examples/Distributed-example/PytorchExample-imagenet-single-mul-DDP-nccl-gloo.py	Added MIT license header to Python file
examples/Distributed-example/LiteApex-imagenet-single-mul-DDP-nccl-gloo.py	Added MIT license header to Python file
examples/Distributed-example/Lite-imagenet-single-mul-DDP-nccl-gloo.py	Added MIT license header to Python file

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