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/errors/middleware.go

@@ -0,0 +1,51 @@
+// 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 errors
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+)
+
+// APIVerificationFailed is an error that contains all the missing info for a mismatched section
+// between the api registrations and the api spec
+type APIVerificationFailed struct {
+	Section              string
+	MissingSpecification []string
+	MissingRegistration  []string
+}
+
+//
+func (v *APIVerificationFailed) Error() string {
+	buf := bytes.NewBuffer(nil)
+
+	hasRegMissing := len(v.MissingRegistration) > 0
+	hasSpecMissing := len(v.MissingSpecification) > 0
+
+	if hasRegMissing {
+		buf.WriteString(fmt.Sprintf("missing [%s] %s registrations", strings.Join(v.MissingRegistration, ", "), v.Section))
+	}
+
+	if hasRegMissing && hasSpecMissing {
+		buf.WriteString("\n")
+	}
+
+	if hasSpecMissing {
+		buf.WriteString(fmt.Sprintf("missing from spec file [%s] %s", strings.Join(v.MissingSpecification, ", "), v.Section))
+	}
+
+	return buf.String()
+}