Added forge support + update architectury loom

common/src/main/java/me/lucaslah/weatherchanger/command/CommandManager.java

@@ -1,4 +1,28 @@
 package me.lucaslah.weatherchanger.command;
 
+import net.minecraft.util.Identifier;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
 public class CommandManager {
+    private final HashMap<Identifier, Command> entries = new HashMap<>();
+
+    public CommandManager add(Command entry) {
+        entries.put(entry.getId(), entry);
+        return this;
+    }
+
+    public Command get(Identifier identifier) {
+        return entries.get(identifier);
+    }
+
+    public List<Command> getEntries() {
+        if (!entries.isEmpty()) {
+            return new ArrayList<>(entries.values());
+        }
+
+        return new ArrayList<>();
+    }
 }