GH-714 Add support for component scanning to function deployer

We already support it for standard deployment, so this fix extends such support for functions deploye via function deployer feature

Resolves #714

spring-cloud-function-deployer/src/it/simplestjarcs/pom.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>function.example</groupId>
+	<artifactId>simplestjarcs</artifactId>
+	<version>1.0.0.RELEASE</version>
+	<description>Showcases compoinent scanning capabilities</description>
+	<packaging>jar</packaging>
+
+	<name>simplestjarcs</name>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+
+</project>

spring-cloud-function-deployer/src/it/simplestjarcs/src/main/java/functions/UpperCaseFunction.java

@@ -0,0 +1,13 @@
+package functions;
+
+import java.util.function.Function;
+
+public class UpperCaseFunction implements Function<String, String> {
+
+	@Override
+	public String apply(String value) {
+		System.out.println("Uppercasing " + value);
+		return value.toUpperCase();
+	}
+
+}