The JAR where the GpDetector is defined doesn't appear on the RPM or DEB files

After compiling OpenNMS directly from the source, or after installing the RPMs on CentOS/RHEL, or installing the DEB files on Debian/Ubuntu, no matter which version of OpenNMS is being used, the JAR related with opennms-detector-generic is not included.

For this reason, the GpDetector cannot be used, and it is reporting ClassNotFoundException on the logs, for those users that are trying to use it.