Resolve "Refactor how PNDs are implemented in the code"

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Closes #243

controller/northbound/server/auth_interceptor_test.go

@@ -38,10 +38,13 @@ func getTestAuthInterceptorServer(t *testing.T) (*AuthInterceptor, *UserServer,
 		t.Fatal(err)
 	}
 
+	sbiStore := nucleus.NewSbiStore()
+	sbiService := nucleus.NewSbiService(sbiStore, eventService)
+
 	s := NewAuthInterceptor(jwtManager, userService, roleService)
 	u := NewUserServer(jwtManager, userService)
 	r := NewRoleServer(jwtManager, roleService)
-	sbiServer := NewSbiServer(pndService)
+	sbiServer := NewSbiServer(sbiService)
 
 	if err := clearAndCreateAuthTestSetup(userService, roleService); err != nil {
 		t.Fatal(err)