Azure Storage Namespace Package (Legacy V2 SDK)

The `azure-storage-nspkg` package is an internal Microsoft Azure Storage namespace package, primarily associated with the V2 Python SDK for Azure Storage. This package served to define the `azure.storage` namespace, allowing older client libraries like `azure-storage-blob` (versions < 3), `azure-storage-file`, and `azure-storage-queue` to be imported under this common prefix. The V2 SDK is deprecated; users should migrate to the V12 SDK, which uses separate, hyphenated packages (e.g., `azure-storage-blob` version 12.x.x) and does not require or use `azure-storage-nspkg`.