Add description to Maven extension injected by the TC agents into Maven builds

Author: etiennestuder

agent/service-message-maven-extension/src/main/java/nu/studer/teamcity/buildscan/agent/servicemessage/BuildScanServiceMessageMavenExtension.java

@@ -10,7 +10,7 @@
 
 import javax.inject.Inject;
 
-@Component(role = AbstractMavenLifecycleParticipant.class, hint = "build-scan-service-message")
+@Component(role = AbstractMavenLifecycleParticipant.class, hint = "build-scan-service-message", description = "Interacts with Maven builds invoked from TeamCity")
 public final class BuildScanServiceMessageMavenExtension extends AbstractMavenLifecycleParticipant {
 
     private final PlexusContainer container;