Git: create_branch is added.
Git: remote_branches return origin.
CreateBranchDialog is added.
BranchesWidget: add create branch.
Small fix.
Git: fix create_branch.
CreateBranchDialog: can checkout is added.
BranchesWidget: use can checkout.
CreateBranchDialog: set current branch as parent.
Merge branch 'feature/AddCreateNewBranch' into develop