optimization - use components for collection responses

[baywet]

Today each OData collection response (Collection(X)), the conversion process is inlining the response schema for each operation (object with value + next link...)
However through Microsoft Graph, we do have a lot of endpoints returning a collection of the same thing:
Collection(Message) is returned by /me/messages, /me/messageFolers/{id}/messages, the same endpoints under /users and /groups....
Inlining those schemas results in a lot of duplication, longer descriptions and duplicated classes for code generators.
The conversion process should be declaring components instead and re-using them through multiple endpoints.