[Finance Redesign] - create a getSponsorTasks endpoint

[wavehassman]

Description

Implement getSponsorTasks endpoint. Make sure to include all fields. Create a transformer to return the data.

Acceptance Criteria

getSponsorTasks route, controller, and service method
Sponsors transformer
Added seed data
Added tests

Proposed Solution

1. Route
2. Controller
3. Service
4. Transformer
5. Data
6. Tests

Mocks

No response