Implement support for final properties

[thekid]

When property hooks were introduced into PHP 8.4, it also added a mechanism for properties to be declared as final.

TODO

• Verify support for declared final modifier in PHP 8.4
• Add support for reading additional modifiers from xp::$meta.
• Add support for @final apidoc tag

See:

• https://wiki.php.net/rfc/property-hooks
• https://wiki.php.net/rfc/final_promotion
• https://externals.io/message/126926#126952

[thekid]

Released in https://github.com/xp-framework/reflection/releases/tag/v3.4.0