Move exception class files into correct directory according to namespace

Civi/Twingle/Exceptions/ProfileValidationError.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Civi\Twingle\Exceptions;
+
+/**
+ * A simple custom error indicating a problem with the validation of the
+ * CRM_Twingle_Profile
+ */
+class ProfileValidationError extends BaseException {
+
+  private string $affected_field_name;
+  public const ERROR_CODE_PROFILE_VALIDATION_FAILED = 'profile_validation_failed';
+  public const ERROR_CODE_PROFILE_VALIDATION_WARNING = 'profile_validation_warning';
+
+  /**
+   * ProfileValidationError Constructor
+   * @param string $affected_field_name
+   *  The name of the profile field which caused the exception
+   * @param string $message
+   *  Error message
+   * @param string $error_code
+   *  A meaningful error code
+   */
+  public function __construct(string $affected_field_name, string $message = '', string $error_code = '') {
+    parent::__construct($message, $error_code);
+    $this->affected_field_name = $affected_field_name;
+  }
+
+  /**
+   * Returns the name of the profile field that caused the exception.
+   * @return string
+   */
+  public function getAffectedFieldName() {
+    return $this->affected_field_name;
+  }
+
+}