Switch CDP -> WebDriver BiDi

[CanadaHonk]

Very long term thing. Move from CDP to WebDriver BiDi for browser control/communication.

Depends on many various (niche) upstream BiDi features for a full switch for most compat/wants, in order of importance:

• Communication channel from page scripts to the automation client w3c/webdriver-bidi#157
• Specify a network request interception feature w3c/webdriver-bidi#66
• Specify closing the browser. w3c/webdriver-bidi#119
• Add commands for resizing and positioning browser windows w3c/webdriver-bidi#398
• Add command for getting process info of the browser w3c/webdriver-bidi#397
• ...and various minor missing options/etc probably

Wishlist (probably never going to be added to BiDi):

• Caching API (JS / see V8Cache)
• Cancel/filter navigations