Changes in the source code

Before compiling the Java source code in the microservices into native executable images, the source code needs to be updated a bit. To be able to natively compile the microservices, the following changes have been applied to the source code:

• The Gradle build files, build.gradle, have been updated by adding the GraalVM plugin, adjusting some dependencies, and configuring the bootBuildImage command.
• Required reachability metadata and custom hints have been added.
• Build time property files have been added to ensure that required Spring beans are reachable during the AOT processing at build time.
• Some properties used at runtime have been added to the config-repo to make the natively compiled microservices operate successfully.
• The configuration to be able to run the GraalVM Native Image tracing agent has been added.
• The verification script, test-em-all.bash, has been updated since the Docker images no longer include...