feat(plugin): new generate-graalvm-metadata Maven goal

[dariuszkuc]

📝 Description

Create new GenerateGraalVmMetadataMojo that introduces new generate-graalvm-metadata goal. New goal generates GraalVM reachability metadata for graphql-kotlin servers.

Usage (this only generates metadata, in order to generate native image you will also need to configure org.graalvm.buildtools:native-maven-plugin, see example integration)

<plugin>
    <groupId>com.expediagroup</groupId>
    <artifactId>graphql-kotlin-maven-plugin</artifactId>
    <version>${graphql-kotlin.version}</version>
    <executions>
        <execution>
            <goals>
                <goal>generate-graalvm-metadata</goal>
            </goals>
            <configuration>
                <!-- list of packages that can contain our GraphQL schema -->
                <packages>com.expediagroup.graalvm</packages>
                <!-- application main class name -->
                <mainClassName>com.example.ApplicationKt</mainClassName>
            </configuration>
        </execution>
    </executions>
</plugin>

🔗 Related Issues

Corresponding Gradle plugin PR -> #1743

[dariuszkuc]

Documentation updates will follow in separate PR.