Revert "Delete BasicMessageInterpolator.java"

This reverts commit b54b5f0.

Author: SentryMan

validator/src/main/java/io/avaje/validation/core/BasicMessageInterpolator.java

@@ -0,0 +1,20 @@
+package io.avaje.validation.core;
+
+import java.util.Map;
+
+final class BasicMessageInterpolator implements MessageInterpolator {
+
+  @Override
+  public String interpolate(String template, Map<String, Object> attributes) {
+
+    String result = template;
+
+    for (final Map.Entry<String, Object> entry : attributes.entrySet()) {
+      // needs work here to improve functionality, support local specific value formatting eg
+      // Duration Max
+      result = result.replace('{' + entry.getKey() + '}', String.valueOf(entry.getValue()));
+    }
+    // return the message
+    return result;
+  }
+}