Revert "Delete vendor/ and the route proxy's: the build module fetches the modules, the root image builds with -mod=mod (issue 1305, C6)"

This reverts commit 9c4bf1f08b.

vendor/github.com/minio/highwayhash/highwayhash_ref.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2017 Minio Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+//go:build noasm || (!amd64 && !arm64 && !ppc64le)
+// +build noasm !amd64,!arm64,!ppc64le
+
+package highwayhash
+
+var (
+	useSSE4 = false
+	useAVX2 = false
+	useNEON = false
+	useSVE  = false
+	useSVE2 = false
+	useVMX  = false
+)
+
+func initialize(state *[16]uint64, k []byte) {
+	initializeGeneric(state, k)
+}
+
+func update(state *[16]uint64, msg []byte) {
+	updateGeneric(state, msg)
+}
+
+func finalize(out []byte, state *[16]uint64) {
+	finalizeGeneric(out, state)
+}