Aria Props on Fabric

[chiaramooney]

The recent 0.71 release of react-native included a suite of new aria-props that supersede existing props. Note that react-native has historically had a many-to-one mapping of JS props to the native accessibility API mappings with a documented precedence order and while these new props trump existing ones, there is no usage for existing applications built on windows platforms. Prioritization of this milestone may shift if we decide to prioritize new Fabric experiences over migrating old experiences to Fabric.

Task	Description	Status
aria-valuemax	Add support for aria-valuemax prop.	Completed
aria-valuemin	Add support for aria-valuemin prop.	Completed
aria-valuenow	Add support for aria-valuenow prop.	Completed
aria-valuetext	Add support for aria-valuetext prop.	Completed
aria-busy	Add support for aria-busy prop.	Completed
aria-checked	Add support for aria-checked prop.	Completed
aria-disabled	Add support for aria-disabled prop.	Completed
aria-expanded	Add support for aria-expanded prop.	Completed
aria-hidden	Add support for aria-hidden prop.	Not Started, Est. < 1 week
aria-label	Add support for aria-label prop.	Completed
aria-labelledby	Add support for aria-labelledby prop.	Not Started, Est. < 1 week
aria-live	Add support aria-live prop.	Completed
aria-modal	Add support for aria-modal.	Not Started, Est. < 1 week
aria-posinset	Add support for aria-posinset.	Not Started, Est. < 1 week
aria-setsize	Add support for aria-setsize.	Not Started, Est. < 1 week

### Tasks
- [x] Add support for aria-valuemax prop.
- [x] Add support for aria-valuemin prop.
- [x] Add support for aria-valuenow prop.
- [x] Add support for aria-valuetext prop.
- [x] Add support for aria-busy prop.
- [x] Add support for aria-checked prop.
- [x] Add support for aria-disabled prop.
- [x] Add support for aria-expanded prop.
- [ ] https://github.com/microsoft/react-native-windows/issues/14541
- [x] Add support for aria-label prop.
- [ ] https://github.com/microsoft/react-native-windows/issues/14569
- [ ] #12515
- [ ] Add support for aria-modal.
- [x] Add support for aria-multiselectable
- [x] Add support for aria-required
- [ ] https://github.com/microsoft/react-native-windows/issues/14552
- [ ] https://github.com/microsoft/react-native-windows/issues/14553