[Feature Request] Create a pipeline with yaml from another repository

**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I cannot create a project..
When we needs create a pipeline with AZ CLI with yaml present on another repository, as available on UI, now the CLI return error 404 if try with that command:

`pipelines create --name --branch master --org --project --repository / --repository-type tfsgit --yaml-path /pipeline.yaml
`

**Use case:**
All pipelines in a project and each other projects will re-use that pipelines

**Describe the solution you'd like**
On method client.py:_create_request_message when exist 'repositoryId' on route_values and 'repositoryId' contains '/' build url to get sources from other project.