v1.0.5 works with go modules

Fix go.mod; Update to chi v4.0.0

chi v4, without go mod

revert breaking import path with go mod stuff

v1.0.3: Add Go modules; Update to github.com/go-chi/chi/v4

Add Go modules; Update to github.com/go-chi/chi/v4