1.5

Added:

1. Introduced a new method setOptions($options) to allow users to update or set new configurations for the parser.
2. Explicit declaration for the $options property to ensure compatibility with PHP 8.2's deprecation of dynamic properties.
3. Added setters for each option

Modified:

1. Updated the __construct() method to initialize default options.
2. Replaced DynamicClass to a new class alias ParsedownExtendedParentAlias to refer to the parent class, either ParsedownExtra or Parsedown, based on their availability. Thanks to @raffaelj #15
3. Enhanced the createAnchorID method:
   • Integrated the iconv function for transliteration of header text to ASCII.
4. Changed Transliterate to use the PHP build-in iconv