SGF-392 - Add support for OQL Query statement extensions in Repository Query methods via Annotations.

Adding integration tests to test the use of the custom OQL Query Annotation extensions in Repository Query methods against GemFire's actual OQL Query engine.

src/test/resources/org/springframework/data/gemfire/repository/sample/UsingQueryAnnotationExtensionsInUserRepositoryIntegrationTest-context.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	   xmlns:gfe="http://www.springframework.org/schema/gemfire"
+	   xmlns:gfe-data="http://www.springframework.org/schema/data/gemfire"
+	   xmlns:repo="http://www.springframework.org/schema/data/repository"
+	   xmlns:util="http://www.springframework.org/schema/util"
+	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	   xsi:schemaLocation="
+        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+        http://www.springframework.org/schema/gemfire http://www.springframework.org/schema/gemfire/spring-gemfire.xsd
+        http://www.springframework.org/schema/data/gemfire http://www.springframework.org/schema/data/gemfire/spring-data-gemfire.xsd
+		http://www.springframework.org/schema/data/repository http://www.springframework.org/schema/data/repository/spring-repository.xsd
+        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
+">
+
+	<util:properties id="gemfireProperties">
+		<prop key="name">UsingQueryAnnotationExtensionsInUserRepositoryIntegrationTest</prop>
+		<prop key="mcast-port">0</prop>
+		<prop key="log-level">config</prop>
+	</util:properties>
+
+	<gfe:cache properties-ref="gemfireProperties"/>
+
+	<gfe:replicated-region id="Users" persistent="false"/>
+
+	<gfe:index id="UsernameIdx" expression="username" from="/Users" type="PRIMARY_KEY"/>
+
+	<gfe-data:repositories base-package="org.springframework.data.gemfire.repository.sample">
+		<repo:include-filter type="assignable" expression="org.springframework.data.gemfire.repository.sample.UsingQueryAnnotationExtensionsInUserRepository"/>
+	</gfe-data:repositories>
+
+</beans>