Allow extra permissions in Project & Issue GraphQL types

What does this MR do?

Allow extra permissions for the Types::ProjectType and Types:IssueType GraphQL types. As we'll be adding more permissions in CE.

Now this spec only validates if all the expected permissions are present, but it will not fail if there are more.

What are the relevant issue numbers?

This is a backport of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/10501

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated via this MR
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• Security reports checked/validated by reviewer