request: plugin usage

[delanym]

If the extension was available as a plugin it could be

• selected using a profile
• updated with versions-maven-plugin

        <plugin>
          <groupId>fr.jcgay.maven</groupId>
          <artifactId>maven-notifier</artifactId>
          <version>${dep.maven-notifier}</version>
          <extensions>true</extensions>
        </plugin>

Please consider. Same for maven-profiler.