add socket independent timeout to httplib/http.client read

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2017-02-02.16:51:34.058>
labels = ['type-feature', '3.11']
title = 'add socket independent timeout to httplib/http.client read'
updated_at = <Date 2021-06-22.21:34:27.271>
user = 'https://bugs.python.org/PatrickMichaud'

bugs.python.org fields:

activity = <Date 2021-06-22.21:34:27.271>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2017-02-02.16:51:34.058>
creator = 'Patrick Michaud'
dependencies = []
files = []
hgrepos = []
issue_num = 29422
keywords = []
message_count = 1.0
messages = ['286807']
nosy_count = 1.0
nosy_names = ['Patrick Michaud']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue29422'
versions = ['Python 3.11']