bugfix/Small fixes, unit-tests refactorings and improvements

feature/Total refactoring, middleware processing was changed

feature/Non-ASCII characters in the URL were supported

feature/Unit-tests were added

bugfix/Bug in the unit-test was fixed

feature/Psalm warnings were fixed

Merge branch 'master' of https://github.com/alexdodonov/mezon-router

feature/Psalm errors was fixed

feature/Small code style fixes

feature/Universal route processing was changed