Add Fluentbit -> Elastic mapping ease

Package Merge Request

Package Changes

Add an easier mapping for elastic output configuration for fluentbit.

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/core/fluentbit/-/merge_requests/46

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1027