[Feature Request] Pull the xcomm branch with the same name as the picker branch during make init

[yaozhicheng]

When developing new features in a picker branch, there are scenarios where coordinated development with the xcomm library is required. However, currently, command make init only pulls the master branch of xcomm. It is necessary to pull the xcomm branch that matches the current picker branch, eg develop. If such a branch does not exist, a warning should be issued, and then the master branch should be pulled instead.