feat: implement a `RequestController` class

[kettanaito]

[!WARNING] This is a breaking change. The way you handle requests changes from request.respondWith() to controller.respondWith().

• Fixes #431
• Fixes #568

This change also lays foundation for supporting controller.abort() (or even better—use AbortSignal) to abort any intercepted request. This would be awesome to ship in the future.

Roadmap

• [x] Refactor existing utils/RequestController.ts class. It's kind of similar but is used for a deferred response resolution. I suspect we can throw it away.
• [x] Remove request.respondWith().
• [x] (Probably) Drop the concept of "interactive request".
• [x] Add controller: RequestController to the request event listener arguments.
• [ ] Check one suspicious test
• [ ] Add unit tests for RequestController
• [ ] ClientRequest: drop the respondWith multiple calls tests from these unit tests
• [ ] RemoteInterceptor: implement the serialization contract to support the onResponseError and onAborted scenarios (these were not supported previously and can be treated as a separate bugfix)

[kettanaito]

Suspicious test

stderr | modules/XMLHttpRequest/compliance/xhr-middleware-exception.test.ts > handles exceptions as instructed in "unhandledException" listener (request error)
Error: Error: connect ECONNREFUSED 127.0.0.1:80
    at Object.dispatchError (/Users/kettanaito/Projects/mswjs/interceptors/node_modules/.pnpm/jsdom@16.7.0/node_modules/jsdom/lib/jsdom/living/xhr/xhr-utils.js:63:19)
    at EventEmitter.<anonymous> (/Users/kettanaito/Projects/mswjs/interceptors/node_modules/.pnpm/jsdom@16.7.0/node_modules/jsdom/lib/jsdom/living/xhr/XMLHttpRequest-impl.js:655:18)
    at EventEmitter.emit (node:events:525:35)
    at Request.<anonymous> (/Users/kettanaito/Projects/mswjs/interceptors/node_modules/.pnpm/jsdom@16.7.0/node_modules/jsdom/lib/jsdom/living/xhr/xhr-utils.js:401:14)
    at Request.emit (node:events:513:28)
    at ClientRequest.<anonymous> (/Users/kettanaito/Projects/mswjs/interceptors/node_modules/.pnpm/jsdom@16.7.0/node_modules/jsdom/lib/jsdom/living/helpers/http-request.js:121:14)
    at ClientRequest.emit (node:events:513:28)
    at Socket.socketErrorListener (node:_http_client:502:9)
    at Socket.emit (node:events:513:28)
    at emitErrorNT (node:internal/streams/destroy:151:8) undefined

   · sets "credentials" to "omit" on isomorphic request when "withCredentials" is not set
   · sets "credentials" to "omit" on isomorphic request when "withCredentials" is false
   · responds with an ArrayBuffer when "responseType" equals "arraybuffer"
Cancelling test run. Press CTRL+c again to exit forcefully.

Not sure if this is intended. The test passes but the error looks weird. Need to check if it's intentional, and fix it if it's not.