Added tick as a TemporalUnit

src/main/java/net/minestom/server/utils/time/Tick.java

@@ -0,0 +1,45 @@
+package net.minestom.server.utils.time;
+
+import net.minestom.server.MinecraftServer;
+
+import java.time.Duration;
+import java.time.temporal.Temporal;
+import java.time.temporal.TemporalUnit;
+
+public class Tick implements TemporalUnit {
+    public static final Tick TICKS = new Tick();
+
+    private Tick() {
+    }
+
+    @Override
+    public Duration getDuration() {
+        return Duration.ofMillis(MinecraftServer.TICK_MS);
+    }
+
+    @Override
+    public boolean isDurationEstimated() {
+        return false;
+    }
+
+    @Override
+    public boolean isDateBased() {
+        return false;
+    }
+
+    @Override
+    public boolean isTimeBased() {
+        return true;
+    }
+
+    @Override
+    public <R extends Temporal> R addTo(R temporal, long amount) {
+        //noinspection unchecked
+        return (R) temporal.plus(amount, this);
+    }
+
+    @Override
+    public long between(Temporal temporal1Inclusive, Temporal temporal2Exclusive) {
+        return temporal1Inclusive.until(temporal2Exclusive, this);
+    }
+}