git branch utils for myshell.
before install, you must install myshell first.
npm i myshell -g
add git-branch-util:
ms add git-branch-util
create a branch.
ms cfb feat-add-util # create a branch named feat-add-util and push it to remote.
merge current branch into target branch
git branch # *feat-add-util
ms mfb master # merge feat-add-util into master
delete a branch and its remote branch
ms dfb feat-add-util # delete feat-add-util and origin/feat-add-util.