Handle only HTTP/S requests and improve excluded urls support (darkwe…

…ak#128)

* Handle only http request

* Direct handle excluded paths

* Implement E2E to ensure exclude works

[WIP] Setup E2E tests on CI (darkweak#126)

* Setup E2E tests

* Bump deps

[WIP] Setup E2E tests on CI (darkweak#126)

* Setup E2E tests

* Bump deps

Implement souin core inside plugins (darkweak#125)

* Implement souin core inside tyk plugin

* Fix træfik plugin & cache-control parsing

* Handle duplicated headers in cached response

* Fix age on caddy

* Bump deps

* Handle souin APIs

* Revert 200 as 0 http code

Clean code according to golangci-lint (darkweak#118)

* Clean code

* Remove golangci.yml override

Update caddy deps to souin v1.5.2 (darkweak#87)

Remove dependencies to non-regression workflow (darkweak#76)

feat: v1.5.0

Update the README.md according to the 1.5 version (darkweak#67)

feat: v1.5.0