DATAGEODE-116 - Add ability to declare include filters in addition to exclude filters on o.s.d.g.mapping.MappingPdxSerializer.

Additionally, o.s.d.g.mapping.MappingPdxSerializer will filter Null types, Apache Geode types, GemStone GemFire types, Java types and Spring Framework types by default.

src/test/java/com/gemstone/gemfire/TestGemStoneGemFireType.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.gemstone.gemfire;
+
+import org.springframework.data.gemfire.mapping.MappingPdxSerializerUnitTests;
+
+/**
+ * The {@link TestGemStoneGemFireType} class is a test {@link Class type} used by
+ * the {@link MappingPdxSerializerUnitTests}.
+ *
+ * @author John Blum
+ * @see org.springframework.data.gemfire.mapping.MappingPdxSerializerUnitTests
+ * @since 1.0.0
+ */
+public class TestGemStoneGemFireType {
+
+}