Teach the API about Remote Consoles

This will allow us to raise events for remote consoles, and provide access
to them at a later date. Relates to BUKKIT-220

By: Andrew Ardill <andrew.ardill@gmail.com>

paper-api/src/main/java/org/bukkit/event/Event.java

@@ -505,6 +505,12 @@ public abstract class Event implements Serializable {
          * @see org.bukkit.event.server.ServerCommandEvent
          */
         SERVER_COMMAND (Category.SERVER),
+        /**
+         * Called when a remote server command is called
+         *
+         * @see org.bukkit.event.server.ServerCommandEvent
+         */
+        REMOTE_COMMAND(Category.SERVER),
         /**
          * Called when a map is initialized (created or loaded into memory)
          *