Add and control Chrome Debugging Protocol

[bahmutov]

• add the connection to Chrome Debugging Protocol by connecting via chrome-remote-interface after launching the browser
• be able to run commands

This will become the platform for

• enabling native events in Chrome Proposal: Support for Cross Browser Testing #310
• collecting full logs https://github.com/flotwig/cypress-log-to-output
• collecting native code coverage https://github.com/bahmutov/cypress-native-chrome-code-coverage-example
• truly support Chrome headless runs Support chrome --headless  #832
• recording video of the test run in Chrome browser Support video capture in browsers other than headless electron  #1767
• allow live-reload out of debugger allow live-reload out of paused debugger #4375
• mock media sizes and DPI Any way to force CSS media queries to detect mobile #970 Ability to tell Cypress we're on retina screen and browser render accordingly. #2330
• mock geolocation Automatically accept geolocation permission / mock geolocation for tests #2671
• simulate offline mode Simulate offline mode #235

[cypress-bot]

The code for this is done in cypress-io/cypress#4628, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot]

Released in 3.5.0.