Temporary fix to #221

Attempt to detect class from Api version and kind alone if Api group not found when loading from Yaml.
Fixes issue #221 temporarily until Api group-version prefixes are generated in class names properly.

Author: archcosmo

util/src/main/java/io/kubernetes/client/util/Yaml.java

@@ -168,6 +168,12 @@ public static Object load(Reader reader) throws IOException {
     }
 
     Class<?> clazz = (Class<?>) classes.get(apiVersion + "/" + kind);
+    if (clazz == null) {
+      // Attempt to detect class from version and kind alone
+      if (apiVersion.contains("/")) {
+        clazz = (Class<?>) classes.get(apiVersion.split("/")[1] + "/" + kind);
+      }
+    }
     if (clazz == null) {
       throw new IOException(
           "Unknown apiVersionKind: "

util/src/test/java/io/kubernetes/client/util/YamlTest.java

@@ -36,11 +36,11 @@ public void testLoad() {
     String[] apiVersions =
         new String[] {
           "v1",
-          "v2alpha1",
-          "v2beta1",
-          "v1alpha1",
-          "v1beta2",
-          "v1beta1",
+          "batch/v2alpha1",
+          "autoscaling/v2beta1",
+          "rbac.authorization.k8s.io/v1alpha1",
+          "apps/v1beta2",
+          "apiregistration.k8s.io/v1beta1",
           "extensions/v1beta1",
           "apps/v1beta1"
         };