Creates a new branch and checks it out from the specified branches
Usage:
git-new.ps1 [-branchName] <string> [-comment <string>] `
[-upstreamBranches <string[]>] [-dryRun]
Specifies the name of the branch.
Aliases: -m, -message
Specifies a comment as part of the commit message for the upstream branch.
Aliases: -u, -upstream, -upstreams
A comma-delimited list of branches (without the remote, if applicable). If not specified, assumes the default service line (see tool-config.)
If specified, only test merging, do not push the updates.