Update headers

[NLGithubWP]

No description provided.

[lzjpaul]

trails and hfl examples

[lzjpaul]

after running the rat checker, need to recheck the header for the following files:

./examples/model_selection/Trails/documents/dev_guide.md
./examples/model_selection/Trails/internal/ml/model_selection/config.ini
./examples/model_selection/Trails/internal/ml/model_selection/scripts/database/load_data_to_db.sh
./examples/model_selection/Trails/internal/ml/model_selection/scripts/database/load_data_to_db_int.sh
./examples/model_selection/Trails/internal/ml/model_selection/scripts/database/load_data_to_db_raw_source.sh
./examples/model_selection/Trails/internal/ml/model_selection/src/dataset_utils/imagenet16.py
./examples/model_selection/Trails/internal/ml/model_selection/src/eva_engine/phase1/algo/singa_ms/README.md
./examples/model_selection/Trails/internal/pg_extension/template/Cargo.pg

[lzjpaul]

updated the apache license headers for trails and hfl examples for v4.2.0