aio rt api create allows relpath without a leading slash #340
Description
Currently users can run aio rt api create basepath relpath ... and it will succeed, producing an endpoint like https://adobeioruntime.net/apis/namespace/basepathrelpath
On the other hand, wsk requires that relpath begins with a /, to separate the basepath and relpath, and if users don't include it, the command produces an error:
error: Unable to parse api command arguments: 'relpath' must begin with '/'.
We should update aio rt api create to match this wsk behavior