Log SDK version on REST calls

As an IronCore audit log user
I want to know what SDK and version make a request to the IronCore service
- so that SDKs with specific behaviors/defects can be recognized and isolated
- so that I can tell if there are out of date clients making requests for encrypted data

AC:
* [ ] Every REST request to the IronCore service should include a header `X-IronCore-Sdk-Version`. Values of the header should be of the form `ironweb ..` and should match the current version of the SDK sending the request.
* [ ] This header should be visible at the ironcore service and should be logged to the requests audit trail

Open questions
* Are we logging the version of the frame or the shim?
Open answers
* The frame