add xp-levelh and moneyh requirements

src/main/java/sh/okx/rankup/requirements/NonDeductibleRequirement.java

@@ -0,0 +1,30 @@
+package sh.okx.rankup.requirements;
+
+import org.bukkit.entity.Player;
+
+/**
+ * Proxy requirement for a deductible requirement that is exactly the same but is not deductible
+ */
+public class NonDeductibleRequirement extends ProgressiveRequirement {
+  private final DeductibleRequirement requirement;
+
+  public NonDeductibleRequirement(DeductibleRequirement requirement, String name) {
+    super(requirement.plugin, name, requirement.hasSubRequirement());
+    this.requirement = requirement;
+  }
+
+  protected NonDeductibleRequirement(NonDeductibleRequirement clone) {
+    super(clone);
+    this.requirement = clone.requirement;
+  }
+
+  @Override
+  public double getProgress(Player player) {
+    return requirement.getProgress(player);
+  }
+
+  @Override
+  public Requirement clone() {
+    return new NonDeductibleRequirement(this);
+  }
+}

src/main/java/sh/okx/rankup/requirements/requirement/ItemhRequirement.java

@@ -1,33 +0,0 @@
-package sh.okx.rankup.requirements.requirement;
-
-import org.bukkit.Material;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.ItemStack;
-import sh.okx.rankup.Rankup;
-import sh.okx.rankup.requirements.ProgressiveRequirement;
-import sh.okx.rankup.requirements.Requirement;
-
-import java.util.Arrays;
-
-public class ItemhRequirement extends ProgressiveRequirement {
-  public ItemhRequirement(Rankup plugin) {
-    super(plugin, "itemh", true);
-  }
-
-  protected ItemhRequirement(ItemRequirement clone) {
-    super(clone);
-  }
-
-  @Override
-  public double getProgress(Player player) {
-    Material material = Material.matchMaterial(getSub());
-    return Arrays.stream(player.getInventory().getStorageContents())
-        .filter(item -> item != null && item.getType() == material)
-        .mapToInt(ItemStack::getAmount).sum();
-  }
-
-  @Override
-  public Requirement clone() {
-    return new ItemhRequirement(plugin);
-  }
-}

src/main/java/sh/okx/rankup/requirements/requirement/TotalMobKillsRequirement.java

@@ -11,7 +11,7 @@ public class TotalMobKillsRequirement extends ProgressiveRequirement {
     super(plugin, "total-mob-kills");
   }
 
-  protected TotalMobKillsRequirement(Requirement clone) {
+  private TotalMobKillsRequirement(Requirement clone) {
     super(clone);
   }