Add makeHeader method to build VanillaCrafts-like chat headers

src/main/java/net/coreprotect/utility/StringUtils.java

@@ -135,4 +135,9 @@ public class StringUtils {
         }
         return list.toArray(new Integer[list.size()]);
     }
+
+    // VanillaCrafts
+    public static String makeHeader(String header) {
+        return "<gray>=============== </gray><red><bold>" + header + "</bold></red><gray> ===============</gray>";
+    }
 }