GH-51 - Add Javadoc generation for kmolecules-ddd.

Kotlin modules need to use Dokka o generate the Javadoc JAR required to publish an artifact on Maven Central. We're now generating that during the release build.

kmolecules-ddd/pom.xml

@@ -54,8 +54,40 @@
 					</execution>
 				</executions>
 			</plugin>
-	</plugins>
+		</plugins>
 
 	</build>
 
+	<profiles>
+		<profile>
+			<id>sonatype</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.jetbrains.dokka</groupId>
+						<artifactId>dokka-maven-plugin</artifactId>
+						<version>${kotlin.version}</version>
+						<executions>
+							<execution>
+								<phase>package</phase>
+								<goals>
+									<goal>javadocJar</goal>
+								</goals>
+							</execution>
+						</executions>
+						<configuration>
+							<dokkaPlugins>
+								<plugin>
+									<groupId>org.jetbrains.dokka</groupId>
+									<artifactId>kotlin-as-java-plugin</artifactId>
+									<version>${kotlin.version}</version>
+								</plugin>
+							</dokkaPlugins>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+	</profiles>
+
 </project>