Add support for ITextRangeProvider

[chiaramooney]

Add support for ITextRangeProvider

Documentation

https://learn.microsoft.com/en-us/dotnet/api/system.windows.automation.provider.itextrangeprovider?view=windowsdesktop-8.0

Behavior

Exposes methods and properties to support UI Automation client access to a span of continuous text in a text container that implements ITextProvider.

Implementation Plan

We should:

1. Implement the ITextRangeProvider APIs in CompositionDynamicAutomationProvider.
2. Set the list of controls who implement the ITextRangeProvider to be Document and Edit/Text under certain conditions. To get more information on the conditions visit the page for the individual UIA control types.

For additional reference, see other provider implementations on Fabric: #11874

To Be Clarified

Unclear if documentation if implementation of ITextRangeProvider should be necessary in all cases of an implemented ITextProvider.