Add NoBindingEmbedding to iOS binding
Add NoBindingEmbedding to iOS binding

NoBindingEmbedding = true is required when using an XCFramework,
otherwise the comsuming app project will get linker errors on
Objective-C classes.

The details what NoBindingEmbedding does and why it is needed for
XCFrameworks is limited.
The source where this setting was found is below:
   - https://github.com/xamarin/xamarin-macios/issues/10774#issuecomment-791518403

one-signal/OneSignal-Xamarin-SDK,one-signal/OneSignal-Xamarin-SDK