Extra permissions in Project & Issue GraphQL

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.

spec/graphql/types/permission_types/issue_spec.rb

@@ -7,6 +7,8 @@ describe Types::PermissionTypes::Issue do
       :create_note, :reopen_issue
     ]
 
-    expect(described_class).to have_graphql_fields(expected_permissions)
+    expected_permissions.each do |permission|
+      expect(described_class).to have_graphql_field(permission)
+    end
   end
 end

spec/graphql/types/permission_types/project_spec.rb

@@ -13,6 +13,8 @@ describe Types::PermissionTypes::Project do
       :update_wiki, :destroy_wiki, :create_pages, :destroy_pages, :read_pages_content
     ]
 
-    expect(described_class).to have_graphql_fields(expected_permissions)
+    expected_permissions.each do |permission|
+      expect(described_class).to have_graphql_field(permission)
+    end
   end
 end