io.entgra.device.mgt.plugins io.entgra.device.mgt.plugins.extensions 6.0.17-SNAPSHOT ../pom.xml 4.0.0 io.entgra.device.mgt.plugins.emqx-extensions pom EMQX Extensions io.entgra.device.mgt.plugins.emqx.exhook io.entgra.device.mgt.plugins.emqx.initializer