enh: Add Batch Pipeline

[brightsparc]

Add support for batch pipeline that creates a SageMaker Pipeline that contains 3 steps

1. Source - pulls source code.
2. Build - get's the latest approved model, and outputs CFN template for SM pipelines using staging.json and prod.json config files.
3. BatchStaging - creates a SageMaker pipeline for Staging.
4. BatchProd - creates a SageMaker pipeline for Production.