adding quickfix library

quickfix/fix_bytes.go

@@ -0,0 +1,28 @@
+// Copyright (c) quickfixengine.org  All rights reserved.
+//
+// This file may be distributed under the terms of the quickfixengine.org
+// license as defined by quickfixengine.org and appearing in the file
+// LICENSE included in the packaging of this file.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
+// THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// See http://www.quickfixengine.org/LICENSE for licensing information.
+//
+// Contact ask@quickfixengine.org if any conditions of this licensing
+// are not clear to you.
+
+package quickfix
+
+// FIXBytes is a generic FIX field value, implements FieldValue.  Enables zero copy read from a FieldMap.
+type FIXBytes []byte
+
+func (f *FIXBytes) Read(bytes []byte) (err error) {
+	*f = FIXBytes(bytes)
+	return
+}
+
+func (f FIXBytes) Write() []byte {
+	return []byte(f)
+}