Register new LazyRestmapper featuregate

This featuregate will be used for enabling lazy restmapper functionality
from controller-runtime.

Author: Fedosin

feature/feature.go

@@ -55,6 +55,11 @@ const (
 	//
 	// alpha: v1.1
 	KubeadmBootstrapFormatIgnition featuregate.Feature = "KubeadmBootstrapFormatIgnition"
+
+	// LazyRestmapper is a feature gate for the Lazy Restmapper functionality.
+	//
+	// alpha: v1.4
+	LazyRestmapper featuregate.Feature = "LazyRestmapper"
 )
 
 func init() {
@@ -70,4 +75,5 @@ var defaultClusterAPIFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 	ClusterTopology:                {Default: false, PreRelease: featuregate.Alpha},
 	KubeadmBootstrapFormatIgnition: {Default: false, PreRelease: featuregate.Alpha},
 	RuntimeSDK:                     {Default: false, PreRelease: featuregate.Alpha},
+	LazyRestmapper:                 {Default: false, PreRelease: featuregate.Alpha},
 }