BUG/MINOR: add license file to generate example

Author: mjuraga

CONTRIBUTING.md

@@ -40,6 +40,7 @@ Data Plane API is generated using [go-swagger](https://github.com/go-swagger/go-
     --tags=Reloads \
     --tags=ACL \
     --tags=Defaults
+    -r ~/dataplaneapi-specification/copyright.txt
 ```
 
 This command generates some of the files in this project, which are marked with // Code generated by go-swagger; DO NOT EDIT.

embedded_spec.go

@@ -13,12 +13,18 @@ require (
 	github.com/go-openapi/swag v0.19.0
 	github.com/go-openapi/validate v0.19.0
 	github.com/haproxytech/client-native v1.2.1-0.20190813110624-83c4d5051c1c
-	github.com/haproxytech/config-parser v1.0.3
-	github.com/haproxytech/models v1.2.0
+	github.com/haproxytech/config-parser v1.1.2
+	github.com/haproxytech/models v1.2.1
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/rs/cors v1.6.0
 	github.com/sirupsen/logrus v1.4.2
 	golang.org/x/net v0.0.0-20190607181551-461777fb6f67
 	golang.org/x/sys v0.0.0-20190528012530-adf421d2caf4 // indirect
 )
+
+replace github.com/haproxytech/models => ../models
+
+replace github.com/haproxytech/config-parser => ../config-parser
+
+replace github.com/haproxytech/client-native => ../client-native