Solution to create identifier to a service task to get mock data

[dheepak-aot]

Describe the task
Solution to create identifier to a service task including it's parent to get the mock data .

Add parent scope when a subprocess is called for income-verification process. (Add this variable for student-income, partner-income, parent1-income and parent2-income)

Add parent scope when a subprocess is called for supporting-user-information-request process. (Add this variable for partner-supporting-info, parent1-supporting-info,and parent2-supporting-info,)

Acceptance Criteria

• Create the parent scope varible where income-verification process is called from assessment gateway.
• Create the parent scope varible where supporting-user-information-request process is called from assessment gateway.
• Adjust the mockHandler accordingly and add a helper to set mock data while calling assessment gateway.
• Create a E2E test with parents included.