Added configurable Vein Miner animation

src/main/java/wtf/hak/survivalfabric/utils/Scheduler.java

@@ -0,0 +1,45 @@
+package wtf.hak.survivalfabric.utils;
+
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class Scheduler {
+
+    private static Scheduler INSTANCE;
+
+    private final Map<Runnable, Long> tasks = new ConcurrentHashMap<>();
+
+    public Scheduler() {
+        ServerTickEvents.END_SERVER_TICK.register((server) -> {
+            for(Runnable task : tasks.keySet()) {
+                long delay = tasks.get(task);
+                if(delay <= 0) {
+                    task.run();
+                    tasks.remove(task);
+                } else {
+                    tasks.put(task, delay-1);
+                }
+            }
+        });
+    }
+
+    public void scheduleTask(Runnable task) {
+        scheduleTask(task, 0L);
+    }
+
+    public void scheduleTask(Runnable task, long delay) {
+        tasks.put(task, delay);
+    }
+
+    public static Scheduler get() {
+        return INSTANCE;
+    }
+
+    public static Scheduler initialize() {
+        INSTANCE = new Scheduler();
+        return INSTANCE;
+    }
+}