Use vendored go-swagger (#8087)

* Use vendored go-swagger

* vendor go-swagger

* revert un wanteed change

* remove un-needed GO111MODULE

* Update Makefile

Co-Authored-By: techknowlogick <matti@mdranta.net>

vendor/github.com/go-openapi/runtime/middleware/not_implemented.go

@@ -0,0 +1,48 @@
+// Copyright 2015 go-swagger maintainers
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package middleware
+
+import (
+	"net/http"
+
+	"github.com/go-openapi/runtime"
+)
+
+type errorResp struct {
+	code     int
+	response interface{}
+	headers  http.Header
+}
+
+func (e *errorResp) WriteResponse(rw http.ResponseWriter, producer runtime.Producer) {
+	for k, v := range e.headers {
+		for _, val := range v {
+			rw.Header().Add(k, val)
+		}
+	}
+	if e.code > 0 {
+		rw.WriteHeader(e.code)
+	} else {
+		rw.WriteHeader(http.StatusInternalServerError)
+	}
+	if err := producer.Produce(rw, e.response); err != nil {
+		panic(err)
+	}
+}
+
+// NotImplemented the error response when the response is not implemented
+func NotImplemented(message string) Responder {
+	return &errorResp{http.StatusNotImplemented, message, make(http.Header)}
+}