Modified to use dataset and pipelinedata (microsoft#193)

* Modified to use dataset and pipelinedata

* Create diabetes dataset if no dataset specified

* Reverted null build_id check

* Added MSE tag

* Reverted logic for NULL Build ID

* Force new model if previous onehas no metric tag

* Removed unused DATA variables

* Removed unused DATA vars

* Updated workaround for non-metric-tagged models

* tidied up code

remove alpha from pipeline parameters (microsoft#169)

No pkl extension requirement for model name (microsoft#164)

Manage environments in conda YAML files (microsoft#158)

* .

* .

* Update code_test.py

* .

* Update Dockerfile

* Do not use conda-merge

* Move all 3 conda files to a single dir
* Do not use conda-merge
* Pin package versions

* PR review fixes

* Update Dockerfile

* PR review fixes

* Update training_dependencies.yml

* Update code_test.py

Update diabetes_regression_build_train_pipeline_with_r.py (microsoft#167

)

Co-authored-by: Eugene Fedorenko <[email protected]>

Tox + code coverage (microsoft#150)

Remove sys.path from everywhere to enable IntelliSense (microsoft#162)

Remove sys.path from everywhere to enable IntelliSense (microsoft#162)

Adding nonessential code for MLOpsPython BYOC Azure doc (microsoft#163)

Typo (microsoft#161)