Update the DHIS2 connectors to read & map OpenSRP locations to DHIS2 locations

[dubdabasoduba]

Context

• The current DHIS2 connectors have the code written to read the OpenMRS location object. This is used to map the locations to the DHIS2 locations.
• After moving to the OpenSRP server location storage we need to add the capability for the DHIS2 connectors to understand the OpenSRP location object.

Implementation plan

• Update the DHIS2 connectors location mapping pieces to understand the location object from OpenSRP. Inside the location object, we have an attribute named externalID this should hold the location Id/uuid from DHIS2.
• This update should be made configurable i.e if we have an env variable that tells the code which pieces it should run. We need to support both OpenMRS and OpenSRP object locations.

How to test

• Using the in-app reporting module on the ZEIR app submit a report to DHIS2
• If the reports are submitted to the correct locations on DHIS2 then the fix works correctly.