Replace glide with Go modules (#544)

* And attempt to build with modules and remove glide
* new tools.go file to get code-generator dependency + updated codegen + remove Glide files and update docs

pkg/generated/clientset/versioned/scheme/register.go

@@ -30,15 +30,14 @@ import (
 	runtime "k8s.io/apimachinery/pkg/runtime"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	serializer "k8s.io/apimachinery/pkg/runtime/serializer"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 )
 
 var Scheme = runtime.NewScheme()
 var Codecs = serializer.NewCodecFactory(Scheme)
 var ParameterCodec = runtime.NewParameterCodec(Scheme)
-
-func init() {
-	v1.AddToGroupVersion(Scheme, schema.GroupVersion{Version: "v1"})
-	AddToScheme(Scheme)
+var localSchemeBuilder = runtime.SchemeBuilder{
+	acidv1.AddToScheme,
 }
 
 // AddToScheme adds all types of this clientset into the given scheme. This allows composition
@@ -51,10 +50,13 @@ func init() {
 //   )
 //
 //   kclientset, _ := kubernetes.NewForConfig(c)
-//   aggregatorclientsetscheme.AddToScheme(clientsetscheme.Scheme)
+//   _ = aggregatorclientsetscheme.AddToScheme(clientsetscheme.Scheme)
 //
 // After this, RawExtensions in Kubernetes types will serialize kube-aggregator types
 // correctly.
-func AddToScheme(scheme *runtime.Scheme) {
-	acidv1.AddToScheme(scheme)
+var AddToScheme = localSchemeBuilder.AddToScheme
+
+func init() {
+	v1.AddToGroupVersion(Scheme, schema.GroupVersion{Version: "v1"})
+	utilruntime.Must(AddToScheme(Scheme))
 }