DATAMONGO-1720 - Make sure benchmark module is not included by default.

The benchmarks module does not produce a JAR by default which let's our Maven Central deployment fail as a module has to produce one according to their rules. We're now only including the benchmark module when the benchmarks profile is active.

pom.xml

@@ -23,7 +23,6 @@
 		<module>spring-data-mongodb-cross-store</module>
 		<module>spring-data-mongodb-log4j</module>
 		<module>spring-data-mongodb-distribution</module>
-		<module>spring-data-mongodb-benchmarks</module>
 	</modules>
 
 	<properties>
@@ -218,6 +217,17 @@
 			</build>
 		</profile>
 
+		<profile>
+			<id>benchmarks</id>
+			<modules>
+				<module>spring-data-mongodb</module>
+				<module>spring-data-mongodb-cross-store</module>
+				<module>spring-data-mongodb-log4j</module>
+				<module>spring-data-mongodb-distribution</module>
+				<module>spring-data-mongodb-benchmarks</module>
+			</modules>
+		</profile>
+
 	</profiles>
 
 	<dependencies>