There is currently a lot of duplication of options fields and structs between the exported mongo/options types and type in the the "unstable" x/ packages. We can address some of that duplication with changes in the x/ package APIs, but we should maximize our ability to refactor options in the future by not leaking types defined in the x/ packages.

Definition of done:

• Update the type of ClientOptions.Crypt to not use a type from the x/ packages.
• Update the type of ClientOptions.Deployment to not use a type from the x/ packages.
• No public API references a value or type defined in an x/ package.