I've done some research on both Computercraft & Open Computers, and to me, these plugins would prove to be somewhat useful & fun. A good example of using Computercraft is to create a custom security system where only those who have a specific PIN number can open doors & such. Just a thought for the next update. NOTE: The subject line should've read [Plugin Suggestion}
How would this be implemented into the Empire? I can do this with redstone. Not a bad idea, because we're following the trend of antigrief, but
The two things you are suggesting are mods, not plugins. If they were added to EMC, everyone who tried to connect would have to have those mods installed. -1 from me.
Everything that requires the players to install anything besides the Minecraft launcher and game (even a resource pack) has been confirmed to not be added.