refactor: moves unstruct funcs to its own pkg (#60)

Operations on unstructured k8s objects should be kept in its own pkg for
better code organization. We use this struct to dynamically handle
watched CRs as we do not want to import types of every component for
which we provide platform capabilites. Often such types might not exist
as as a dedicated client-go library with generated stubs.

This change creates new `pkg/unstruct` where we should start organizing
helper functions.

controllers/routing/routing_reconcile_resources.go

@@ -11,6 +11,7 @@ import (
 	"github.com/opendatahub-io/odh-platform/pkg/metadata/annotations"
 	"github.com/opendatahub-io/odh-platform/pkg/metadata/labels"
 	"github.com/opendatahub-io/odh-platform/pkg/spi"
+	"github.com/opendatahub-io/odh-platform/pkg/unstruct"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -78,7 +79,7 @@ func (r *PlatformRoutingController) exportService(ctx context.Context, target *u
 			return fmt.Errorf("could not load templates for type %s: %w", exportMode, err)
 		}
 
-		if errApply := cluster.Apply(ctx, r.Client, resources, ownershipLabels...); errApply != nil {
+		if errApply := unstruct.Apply(ctx, r.Client, resources, ownershipLabels...); errApply != nil {
 			return fmt.Errorf("could not apply routing resources for type %s: %w", exportMode, errApply)
 		}
 	}

pkg/cluster/unstruct.go → pkg/unstruct/funcs.go

@@ -1,4 +1,4 @@
-package cluster
+package unstruct
 
 import (
 	"context"