Support default identity provider property

Author: jorbaum

cloudfoundry-client-reactor/src/test/java/org/cloudfoundry/reactor/uaa/identityzones/ReactorIdentityZonesTest.java

@@ -832,6 +832,8 @@ void list() {
                                                                                             + " /passcode)")
                                                                                 .build())
                                                                 .ldapDiscoveryEnabled(false)
+                                                                .defaultIdentityProvider(
+                                                                        "test-identity-provider")
                                                                 .accountChooserEnabled(false)
                                                                 .build())
                                                 .name("The Twiglet Zone")

cloudfoundry-client-reactor/src/test/resources/fixtures/uaa/identity-zones/GET_response.json

@@ -97,6 +97,7 @@
           "text": "One Time Code (Get on at /passcode)"
         }
       ],
+      "defaultIdentityProvider": "test-identity-provider",
       "idpDiscoveryEnabled": false,
       "accountChooserEnabled": false
     },

cloudfoundry-client/src/main/java/org/cloudfoundry/uaa/identityzones/_IdentityZoneConfiguration.java

@@ -65,6 +65,13 @@ abstract class _IdentityZoneConfiguration {
     @Nullable
     abstract CorsPolicy getCorsPolicy();
 
+    /**
+     * The default identity provider for this zone
+     */
+    @JsonProperty("defaultIdentityProvider")
+    @Nullable
+    abstract String getDefaultIdentityProvider();
+
     /**
      * The issuer of this zone
      */