Adding APIGroups back to the schema

Prior schema calculations started with openapiv2 models which included a
model for APIGroups. However, new schema calculations use
ServerGroupsAndResources first, which omitted these values. This
re-adds this type using a static schema.

pkg/resources/apigroups/apigroup.go

@@ -7,10 +7,22 @@ import (
 
 	"github.com/rancher/apiserver/pkg/store/empty"
 	"github.com/rancher/apiserver/pkg/types"
+	wschemas "github.com/rancher/wrangler/v3/pkg/schemas"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/discovery"
 )
 
+var BaseSchema = types.APISchema{
+	Schema: &wschemas.Schema{
+		ID: "apigroup",
+		Attributes: map[string]interface{}{
+			"group":   "",
+			"kind":    "APIGroup",
+			"version": "v1",
+		},
+	},
+}
+
 func Template(discovery discovery.DiscoveryInterface) schema.Template {
 	return schema.Template{
 		ID: "apigroup",