Implement presentation handlers

[aldy505]

This should be easy. For each handler, all you need to do is:

1. Parse the request body (if any), to a schema that is already defined on the presentation/schema package.
2. Convert the request schema into common business model
3. Execute the business function
4. Convert the returned business model into the response schema
5. Send it

https://github.com/TokoBapak/mock-shipping-provider/blob/413bb3e6abb6362ced4b4bdc42173c1c82f6065d/presentation/estimate.go#L5-L7

https://github.com/TokoBapak/mock-shipping-provider/blob/413bb3e6abb6362ced4b4bdc42173c1c82f6065d/presentation/order.go#L5-L7

https://github.com/TokoBapak/mock-shipping-provider/blob/413bb3e6abb6362ced4b4bdc42173c1c82f6065d/presentation/status_history.go#L5-L7