feat: Implement Angular HTTP Resource and Request plugins
- Added `httpResource` and `httpRequest` companion plugin handlers to generate Angular services and functions for API operations.
- Introduced `PetResources`, `StoreResources`, and `UserResources` classes for managing pet store operations.
- Enhanced configuration options for HTTP resources and requests, allowing customization of class and method names.
- Generated TypeScript definitions for Angular HTTP resource and request options.
- Updated plugin handler to conditionally enable HTTP resource generation based on configuration.