Add Stock Management to the OpenLMIS Reporting solution

This epic focuses on making the stock management reporting solution that was developed in Q1 2018 available for implementations in the future. Currently, the stock management reporting solution that was developed uses Druid as the data store and doesn't account for role based access controls. We need to identify if druid is an appropriate solution moving forward for implementations who want to use stock management, determine how to implement role based access controls and possibly add druid to the reporting stack.

Tasks include:

• Evaluate the the work that was done and determine if Druid is an appropriate path forward for stock management reporting in OpenLMIS

• If suitable, develop a mechanism to make it available

• If not suitable, work through the process of converting everything from druid to Postgres (multiple small epics)