[Enhancement] WrapLayout support in the CollectionView

## Description
I propose to create a new property for CollectionView called Wrap just like FlexLayout has:
https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/layouts/flex-layout#the-wrap-property

- NoWrap, the default
- Wrap
- Reverse (or "wrap-reverse" in XAML)

## Summary
This feature is essential for people who need to create very dynamic designs in the DataTemplate of a CollectionView, being able to have columns with many rows and each element with a different width or height and being able to change rows if there is a column with enough width available. things that currently in Xamarin.Forms cannot be done trivially.

WrapLayout is a layout container that lets you position items in rows or columns, based on the orientation property. When the space is filled, the container automatically wraps items onto a new row or column.

A good example is the [AiForms.Layouts](https://github.com/muak/AiForms.Layouts) library that has the RepeatableWrapLayout control that allows this functionality but does not have a recycling system, so it would be interesting if the CollectionView had this functionality to take advantage of its recycling system.

**Sample image:**

**Sample video**
https://www.youtube.com/watch?v=9kE-OA9jz8c

Start by reviewing the CollectionView and FlexLayout implementations, then compare the requested NoWrap, Wrap, and Reverse behavior with the linked FlexLayout documentation and AiForms.Layouts example. Done means CollectionView supports the requested wrapping modes while retaining item recycling, with behavior validated across the relevant orientations and layouts.

Written by the indexing model from the issue text.