JBIDE-18023 - Ensure copyrights and provider names are correct in all plugins and features

https://issues.jboss.org/browse/JBIDE-18023
Ensure copyrights and provider names are correct in all plugins and features
Yeah, sorry... didn't see the second PR on the JIRA. All's well here. Not sure "JBoss by Red Hat" works as a contributor entry, but that's not a legal thing so it's probably fine.