Implement new setup key resource (#178)

This change implements a new resource called SetupKey that manages the
lifecycle of setup keys and stores them in secrets.

A major change here is that we are also switching to using SSA for
resource management.

Part of #172

Signed-off-by: Philip Laine <philip.laine@gmail.com>

api/v1alpha1/groupversion_info.go

@@ -0,0 +1,23 @@
+// Package v1alpha1 contains API Schema definitions for the  v1alpha1 API group.
+// +kubebuilder:object:generate=true
+// +groupName=netbird.io
+// +kubebuilder:ac:generate=true
+// +kubebuilder:ac:output:package=../../pkg/applyconfigurations
+package v1alpha1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	// GroupVersion is group version used to register these objects.
+	GroupVersion       = schema.GroupVersion{Group: "netbird.io", Version: "v1alpha1"}
+	SchemeGroupVersion = GroupVersion
+
+	// SchemeBuilder is used to add go types to the GroupVersionKind scheme.
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	// AddToScheme adds the types in this group-version to the given scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)