[RGen] Add support for Events

[mandel-macaque]

Apple platform

No response

Framework version

net10.0-*

Affected platform version

NET 10.0

Description

Provide an API to be able to create an Event in a class, this is particularly important for UIKit and AppKit.

Steps to Reproduce

Add a binding with partial Events that will create the needed partial code.

Did you find any workaround?

No response

Relevant log output

No response