Linter for package router

[nabbar]

router/router.go:41:83: Top level comment should end in a period (godot)
// SetGinHandler func that return given func as ginTonic HandlerFunc interface type
                                                                                  ^
router/error.go:52:2: missing cases in switch of type errors.CodeError: UNK_ERROR (exhaustive)
	switch code {
	^