Add tarfile.TarPath

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-10-28.15:59:21.866>
labels = ['type-feature', 'library', '3.11']
title = 'Add tarinfo.Path'
updated_at = <Date 2022-01-02.00:01:26.196>
user = 'https://github.com/FFY00'

bugs.python.org fields:

activity = <Date 2022-01-02.00:01:26.196>
actor = 'barneygale'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-10-28.15:59:21.866>
creator = 'FFY00'
dependencies = []
files = []
hgrepos = []
issue_num = 45649
keywords = []
message_count = 6.0
messages = ['405194', '405206', '405210', '409479', '409481', '409482']
nosy_count = 4.0
nosy_names = ['jaraco', 'ethan.furman', 'FFY00', 'barneygale']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue45649'
versions = ['Python 3.11']