feat(package): Automatic-Module-Name in JAR Manifest

Adds the possibility to use this package as an automatic module for Java 9+ consumers who utilize Java modularity

Resolves #42

pom.xml

@@ -15,7 +15,8 @@
   ~ limitations under the License.
   -->
 
-<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">
+<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>
 
@@ -98,6 +99,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <freemarker.version>2.3.33</freemarker.version>
+        <freemarker.java8.module.name>freemarker.java8</freemarker.java8.module.name>
         <cucumber.version>7.18.1</cucumber.version>
         <junit.version>5.11.0</junit.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
@@ -220,6 +222,18 @@
                         </execution>
                     </executions>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-jar-plugin</artifactId>
+                    <version>3.3.0</version>
+                    <configuration>
+                        <archive>
+                            <manifestEntries>
+                                <Automatic-Module-Name>${freemarker.java8.module.name}</Automatic-Module-Name>
+                            </manifestEntries>
+                        </archive>
+                    </configuration>
+                </plugin>
             </plugins>
         </pluginManagement>
     </build>