Adding a new cosmos db instance in service resources

Find details here: #163 (closed)

What's pending:

1. Creation on SA will be handled in a separate MR
2. Changes in partition.http tool
3. The arch diagram will be updated along with storage account related MR

Reference MR: 0ae25775

Devops Pipeline for this change: https://dev.azure.com/osdu-demo/OSDU_Rx/_build/results?buildId=122945&view=results

cc: @polavishnu @komakkar @manishk