* Refactor: initial commit

* wip

* Refactor: getting into a simpler model

* Refactor: adds some comments

* Refactor: renames statuses according to PR comments

* Refactor: adds more comments

* Tests: adds tests for FetchQueue

* Tests: adds tests for ResponseQueue

* Tests: adds tests for FetchQueueWorker

* Tests: simplified the tests for ResponseQueue

* Refactor: adds http2 scenario

* Refactor: using Cfg instead of global variable

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Refactor: reverted change in frontendsettings.go

* Tests: fix test mocks

* Fix: changes how cfg.Protocol gets its value

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>