Feat: Kusion Plugin

[hoangndst]

Enhancement

• Displays Kusion information about entities in Backstage, including:
  • Kusion Stack details
  • Backend configurations
  • Workspace information
  • Organization and Project names
• Provides Component Overview for each project managed by Kusion, including:
  • Kusion Stack information
  • Run change diffs
• Offers System Overview for all Kusion Resources (Backend, Workspace, Module, etc.)