Internal Office Domain Service Implementation

[Krishanx92]

Description:
This issue is created to track the progress of Internal Backoffice Domain Service implementation.

Functionality of Internal Back Office DS
The Internal Backoffice DS is capable of handling all the internal backoffice related flows and use cases in APK control plane and management server calls the internal backoffice DS and internal Backoffice DS calls DB and persists the data to the database.

Sub tasks

• [Backoffice-internal] Open API definition validation and implement initial flow #267
• [Backoffice-internal] Add to helm chart #288
• [Backoffice-internal] Implement Add API related flow. #268
• [Backoffice-internal] Create Artifact from user inputs and store in database #291
• [Backoffice-internal] Support API Update/Delete #295