Missing "Scopes" field in Application type
### Problem
I am using the list endpoints for gitlab oauth applications management on a self hosted instance.
I am currently unable to use the "Scopes" that is returned by the list endpoint for each application. (Here is a link to the documentation of this particular endpoint: https://docs.gitlab.com/api/applications/#list-all-applications)
### Solution
Could this "Scopes" field be added to the Application type definition ?
## Implementation Guide
- Follow the `CONTRIBUTING.md` guide for setting up your local development environment.
- Clone the community fork of this project.
- In `applications.go`, add a new attribute called `Scopes` to the `Application` struct. This is a string slice.
- Update the tests in `applications_test.go` to expect `scopes` in the response. Ideally add a test case for `CreateApplication` that uses `scopes`.
issue