Add property meta for easier to customize

[robin-dongbin]

Not used internally

[what-the-diff]

PR Summary

• Introduction of New Property to Field Class
  A new attribute named meta has been integrated into the Field class. This enhancement will expand the current capability of the Field class and provide additional meta-information for each field.

[binaryk]

Thank you @robin-dongbin. Can you explore more:

1. can we use the src/Traits/Metable trait? As we do it the filter src/Filters/Filter.php:22
2. what's the benefit of meta if we don't serialize it? Is it only for backend purposes? Check the src/Fields/Field.php:532, we serialize it for the filter src/Filters/Filter.php:252

[robin-dongbin]

In fact, I was initially going to use it for the backend, to define some metadata and serialize it myself and filter some useless attributes for my project.
But now I realize that my needs are more complex and defining source data alone doesn't completely solve my problem. Maybe I should extend from Field and customize