[🚀 Feature]: Support Webdriver commands for FedCM

[cbiesinger]

Feature and motivation

Expose these Webdriver commands in Selenium:
https://fedidcg.github.io/FedCM/#automation

I have a draft PR at #12087 (comment)

Usage example

This lets identity providers and relying parties use Selenium's Java API to control
the FedCM browser dialog to test that their website works correctly when
using the FedCM API.

[github-actions]

@cbiesinger, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[cbiesinger]

(note that these commands are already supported in Chromedriver v115)

[titusfortner]

Looks like this has been implemented in Java, so we just need to add it for the other bindings.