add Azure ML training pipeline notebook - facilitates the user to get quickly up to speed with AML training pipelines

[maxkazmsft]

add Azure ML Training Pipeline Jupyter notebook which showcases the use of recently added pipeline as detailed here: https://github.com/microsoft/seismic-deeplearning/blob/contrib/interpretation/deepseismic_interpretation/azureml_pipelines/README.md

Probably a good idea to re-write this README into notebook format