All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

• [x ] Does your submission pass tests?

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully run tests with your changes locally?

User Impact

• What is the user impact of this change? - Support for compression has been added to the https endpoint and exists in the UI and API. Adding it to go-fastly will allow us to add it to cli and terraform

Are there any considerations that need to be addressed for release?

This change gates adding support to the CLI and terraform