limit region owners and members by new semi generic perm:

protectionstones.members-amount.<integer>
protectionstones.owners-amount.<integer>

perm is necessary to add any member/owner #1

src/main/java/dev/espi/protectionstones/commands/ArgAddRemove.java

@@ -115,7 +115,6 @@ public boolean executeArgument(CommandSender s, String[] args, HashMap<String, S
                     PSL.msg(p, PSL.CANNOT_REMOVE_YOURSELF_LAST_OWNER.msg());
                     return;
                 }
-
                 regions = Collections.singletonList(r);
             }
 

src/main/java/dev/espi/protectionstones/utils/PermUtil.java

@@ -0,0 +1,34 @@
+package dev.espi.protectionstones.utils;
+
+import org.apache.commons.lang3.math.NumberUtils;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.PermissionAttachmentInfo;
+
+import java.util.Optional;
+
+public class PermUtil {
+
+    /**
+     * Getting number variable on end of perm
+     * @param player Bukkit player
+     * @param searchingPerm permission without number variable on end like "protectionstones.owners-amount."
+     * @return perm int variable
+     */
+    public static int getLimitOwnersFromPermission(Player player, String searchingPerm) {
+        Optional<PermissionAttachmentInfo> perm = player.getEffectivePermissions().stream()
+                .filter(p -> p.getPermission().startsWith(searchingPerm)).findFirst();
+        if (perm.isEmpty()) {
+            return 0;
+        }
+        String[] split = perm.get().getPermission().split("\\.");
+        if (split.length < 3) {
+            return 0;
+        }
+        String limitString = split[2];
+
+        if (NumberUtils.isCreatable(limitString)) {
+            return Integer.parseInt(limitString);
+        }
+        return 0;
+    }
+}