Added an implementation of HeaderWriter for Clear-Site-Data HTTP
response header as welll as an implementation of LogoutHanlder
that accepts an implementation of HeaderWriter to write headers.
- Added ClearSiteDataHeaderWriter and HeaderWriterLogoutHandler
that implements HeaderWriter and LogoutHandler respectively
- Added unit tests for both implementations's behaviours
- Integration tests for HeaderWriterLogoutHandler that uses
ClearSiteDataHeaderWriter
- Updated the documentation to include link to
HeaderWriterLogoutHandler
Fixes gh-4187