Event data schemas for NCMP

Event data schemas for NCMP

- Updated the schema id as NCMP has a master copy of all the schemas
  that are used
- Introduced an enum to keep track of the dataschemas at a single place.
- Refactored NcmpEvent builder class to take type and dataschema as a
  parameter
- Cleaned up dependencies
- Refactored testware to prove the changes
- Changes are according to the decisions recorded here https://lf-onap.atlassian.net/wiki/spaces/DW/pages/16554840/CPS-2425+Event+Schemas+in+ONAP#Agreed-Event-Schema-Names

Issue-ID: CPS-2425
Change-Id: Icbda1aa20e3c4b0f2b6797d25b59e52cf9237c92
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>