https://github.com/Azure/azure-storage-python has no package.swift manifest

I was trying to add this package dependence but encountered the below error

**Note:https://github.com/Azure/azure-storage-python has no package.swift manifest**

Start by inspecting the azure-storage-python repository and the request for a package.swift manifest. Determine what dependency and package configuration are needed for the reported package-dependence use case, then verify that the resulting manifest supports adding this repository as a dependency.

索引モデルが issue の本文から書いたものです。