[git-webkit] Allow projects to declare alternate remotes

[JonWBedard]

880bb31

[git-webkit] Allow projects to declare alternate remotes
https://bugs.webkit.org/show_bug.cgi?id=239261
<rdar://problem/91654752 >

Reviewed by Dewei Zhu.

* Tools/Scripts/libraries/webkitscmpy/setup.py: Bump verison.
* Tools/Scripts/libraries/webkitscmpy/webkitscmpy/__init__.py: Ditto.
* Tools/Scripts/libraries/webkitscmpy/webkitscmpy/local/git.py:
(Git.remote): Move logic to remote.Scm.from_url.
* Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/setup.py:
(Setup.github): Allow user to specify trailing remote name.
(Setup._add_remote): Add a remote or modify exising remote.
(Setup._fork_remote): Determine a remote url based on origin url.
(Setup.git): If the project declares remotes, check if the user is using the righ origin. Warn them
if they are not. Check if the user has access to alternate remotes, if they do, add those remotes
and create forks for them. Fetch all fork remotes. Do not fork repository if origin does not match
declared origin.
* Tools/Scripts/libraries/webkitscmpy/webkitscmpy/remote/scm.py:
(Scm.from_url): Moved logic from local.Git.remote.
* Tools/Scripts/libraries/webkitscmpy/webkitscmpy/test/setup_unittest.py:
* metadata/git_config_extension: Add expected remotes.

Canonical link: https://commits.webkit.org/249702@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@292937 268f45cc-cd09-0410-ab3c-d52691b4dbfc

[dewei-zhu]

r=me

[webkit-early-warning-system]

Committed r292937 (249702@main): https://commits.webkit.org/249702@main

Reviewed commits have been landed. Closing PR #277 and removing active labels.