[rh:curlcffi] Add support for curl_cffi

Authored by: coletdjnz, Grub4K, pukkandan, bashonly

Co-authored-by: Simon Sawicki <contact@grub4k.xyz>
Co-authored-by: pukkandan <pukkandan.ytdlp@gmail.com>
Co-authored-by: bashonly <bashonly@protonmail.com>

yt_dlp/networking/common.py

@@ -256,6 +256,15 @@ class RequestHandler(abc.ABC):
     def _merge_headers(self, request_headers):
         return HTTPHeaderDict(self.headers, request_headers)
 
+    def _calculate_timeout(self, request):
+        return float(request.extensions.get('timeout') or self.timeout)
+
+    def _get_cookiejar(self, request):
+        return request.extensions.get('cookiejar') or self.cookiejar
+
+    def _get_proxies(self, request):
+        return (request.proxies or self.proxies).copy()
+
     def _check_url_scheme(self, request: Request):
         scheme = urllib.parse.urlparse(request.url).scheme.lower()
         if self._SUPPORTED_URL_SCHEMES is not None and scheme not in self._SUPPORTED_URL_SCHEMES:
@@ -491,7 +500,7 @@ class Response(io.IOBase):
 
     def __init__(
             self,
-            fp: typing.IO,
+            fp: io.IOBase,
             url: str,
             headers: Mapping[str, str],
             status: int = 200,