LIN-1079 immediate downstream and upstream assets in impact report

[akshaysw]

Change description

https://atlanhq.atlassian.net/browse/LIN-1079
PR will add two columns in list API reponse
immediateUpstream assets
IimmediateDownstream assets
this is one of the requirement raised by zoom team

there is boolean flag immediateNeighbours which can be set true to get this two columns, if passed as false then no additional columns will be added in the response

Type of change

• Bug fix (fixes an issue)
• New feature (adds functionality)

Related issues

Fix #1

Checklists

Development

• Lint rules pass locally
• Application changes have been tested thoroughly
• Automated tests covering modified code pass

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

Code review

• Pull request has a descriptive title and context useful to a reviewer. Screenshots or screencasts are attached as necessary
• "Ready for review" label attached and reviewers assigned
• Changes have been reviewed by at least one other contributor
• Pull request linked to task tracker where applicable