Add support for custom messages

Server/src/club/moddedminecraft/polychat/server/DiscordHandler.java

@@ -97,6 +97,7 @@ public void registerCommands() throws FileNotFoundException, NoSuchMethodExcepti
             {
                 put("online", CommandOnline.class);
                 put("help", CommandHelp.class);
+                put("message", CommandMessage.class);
                 put("minecraft", MinecraftCommand.class);
             }
         };

Server/src/club/moddedminecraft/polychat/server/command/CommandMessage.java

@@ -0,0 +1,23 @@
+package club.moddedminecraft.polychat.server.command;
+
+import club.moddedminecraft.polychat.server.Main;
+
+import java.util.Map;
+
+public class CommandMessage extends Command {
+    private final String message;
+
+    public CommandMessage(String name, Map<String, Object> args) {
+        super(name, args);
+        this.message = (String) args.get("message");
+    }
+
+    @Override
+    public String getDescription() {
+        return "Show predefined message";
+    }
+
+    public String run(String[] args, String channel) {
+        return this.message;
+    }
+}