feature request for Transform: RemoveObjectFieldsWithoutDirective

**Is your feature request related to a problem? Please describe.**

I want to slitch my graphql schema to some different subset. And I found there is a transform that named RemoveObjectFieldsWithDirective. I think that's what I need. But in my case, I want to pick only a few schema in it.

**Describe the solution you'd like**

There are already RemoveObjectFieldsWithDirective. We just need to implement RemoveObjectFieldsWithoutDirective.

Start by locating the existing RemoveObjectFieldsWithDirective transform and its tests in the graphql-tools repository. Follow that transform's entry point and test structure; done means the complementary transform is available and its behavior is covered for schemas where only selected directive-marked fields remain.

Written by the indexing model from the issue text.