Code refactoring for EM

[bharathappali]

Current EM code has lot of wrapper classes which has changed over the period of time, These classes are no longer valid as their functionality was been moved to a new class and structure. Maintaining these left over classes brings up a big confusion going forward when mvp_demo code is getting merged to master.

Example: class EMTrialConfig is just a wrapper around EMConfigObject and it's being maintained only for the functional dependency of getDeploymentName, getDeploymentStrategy, getDeploymentNamespace, getTrainingContainers functions.

Refactoring of this class and it's functions needs to be done so that we could reduce one level of call from ETD.