Add "ignore_modules" option to TracebackException.format()

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2017-08-29.07:45:45.416>
labels = ['type-feature', 'library', '3.10']
title = 'Add "ignore_modules" option to TracebackException.format()'
updated_at = <Date 2021-08-31.20:42:18.563>
user = 'https://github.com/ncoghlan'

bugs.python.org fields:

activity = <Date 2021-08-31.20:42:18.563>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2017-08-29.07:45:45.416>
creator = 'ncoghlan'
dependencies = []
files = []
hgrepos = []
issue_num = 31299
keywords = ['patch']
message_count = 10.0
messages = ['300974', '301791', '302892', '304921', '305996', '306762', '328137', '334399', '382694', '400777']
nosy_count = 6.0
nosy_names = ['brett.cannon', 'ncoghlan', 'pitrou', 'rbcollins', 'pablogsal', 'iritkatriel']
pr_nums = ['26772', '28067']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue31299'
versions = ['Python 3.10']