Add intermediate module poms (#337)

function/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.springframework.cloud.fn</groupId>
+    <artifactId>java-functions-function</artifactId>
+    <version>4.0.0-SNAPSHOT</version>
+    <name>java-functions-function</name>
+    <description>Java Functions Function</description>
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>aggregator-function</module>
+        <module>filter-function</module>
+        <module>header-enricher-function</module>
+        <module>http-request-function</module>
+        <module>spel-function</module>
+        <module>payload-converter-function</module>
+        <module>splitter-function</module>
+        <module>task-launch-request-function</module>
+        <module>twitter-function</module>
+        <module>image-recognition-function</module>
+        <module>object-detection-function</module>
+        <module>semantic-segmentation-function</module>
+    </modules>
+
+</project>