Chain content instead of replacing it

[Kaliumhexacyanoferrat]

As a developer of a web application, I would like the checksum calculation to be as effective as possible, so the caching functionality requires less computation resources. Therefore, concerns should not override the content with an expensive checksum calculation method based on a stream, but re-use the existing content to have a very fast checksum calculation.

Example

response.Content = new GzipContent(response.Content);

Acceptance criteria

• All concerns are rewritten to efficiently pass the checksum calculation through to the actual source