* Update input arguments
* Remove fileOutputs
* Update outputs to new paths
* Modify integ test artifact path
* Add unit test for new output format
* Add unit test for write_output
* Migrate tests into test_utils
* Add clarifying comment
* Remove output path file extension
* Update license to 0.5.2
* Update component to 0.5.2
* Add 0.5.2 to changelog
* Remove JSON
* don't use aws-secret and update readme for sample pipelines
* Addressed comments on PR and few more readme changes
* small changes to readme
* nit change
* Address comments
* construct channel input using json.dumps()
* remover data_location parameters
* add changelog
* Update version in license file and small changes to readme
* Added Spot Instance Support
* Fixed missing output configuration
* Added spot instance support to example pipelines
* Updated image to new repository
* Update docker images and minor refactoring
* Update image tag, bug fixes, remove unneeded imports
* Revert to using image version, use origin batch transform output method
* Forgot to save 2 changes
* Add components for workteam and Ground Truth, minor update for HPO and train, add sample pipeline demo for workteam and GT, update images
* Minor style fixes
* Address PR comments
* Refactor for new folder structure
* add HPO component and sample pipeline usage
* Update Dockerfile to include HPO component
* Update docker image used in hpo component
* Update HPO readme, make HPO job name required, allow empty string for int params, reintro some default values
* Resolve a couple todos
* Add Dockerfile for HPO and update docker image used in HPO component
* Add Dockerfile for HPO