Add tests, add docu, use subpackage.

pom.xml

@@ -85,6 +85,11 @@
 			<artifactId>micronaut-runtime</artifactId>
 			<scope>provided</scope>
 		</dependency>
+		<dependency>
+			<groupId>io.micronaut.test</groupId>
+			<artifactId>micronaut-test-junit5</artifactId>
+			<scope>test</scope>
+		</dependency>
 
 		<!-- logging -->
 		<dependency>
@@ -103,6 +108,12 @@
 	</dependencies>
 
 	<build>
+		<testResources>
+			<testResource>
+				<directory>src/test/resources</directory>
+				<filtering>true</filtering>
+			</testResource>
+		</testResources>
 		<plugins>
 
 			<!-- add compiler processors -->