Added middleware support

Benchmarks_test.go

@@ -4,6 +4,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
+	"git.akyoto.dev/go/router/testdata"
 	"git.akyoto.dev/go/server"
 )
 
@@ -26,7 +27,7 @@ func BenchmarkGitHub(b *testing.B) {
 	response := &NullResponse{}
 	s := server.New()
 
-	for _, route := range loadRoutes("testdata/github.txt") {
+	for _, route := range testdata.Routes("testdata/github.txt") {
 		s.Router.Add(route.Method, route.Path, func(server.Context) error {
 			return nil
 		})