Move the old stuff out of the way, begin fixing one by one

src/old/java/com/zontreck/events/CommandExecutionEvent.java

@@ -0,0 +1,19 @@
+package com.zontreck.events;
+
+import java.util.UUID;
+
+import net.minecraft.world.entity.player.Player;
+import net.neoforged.bus.api.Event;
+
+
+public class CommandExecutionEvent extends Event {
+
+    public UUID playerID;
+    public String command;
+
+    public CommandExecutionEvent(Player player, String cmd)
+    {
+        playerID=player.getUUID();
+        command=cmd;
+    }
+}