fix: read a Supermicro X10 with only the OOB license over Redfish (0.3.1)

First run against real hardware over Redfish: an X10DRL-i (BMC 3.91) with
SFT-OOB-LIC. Its Redfish tree is recorded under
tests/fixtures/supermicro-x10drl-i-3.91/redfish, scrubbed.

- A resource refused for want of a further license (403 OemLicenseNotPassed)
  no longer fails the getter. Storage then falls back to SimpleStorage. The
  firmware list falls back to the BMC and BIOS versions when UpdateService
  is withheld.
- get_device_warnings reports bmc_license_partial with the licenses and the
  withheld parts (drives, firmware inventory).
- A placeholder system model ("Super Server") is replaced by the board
  (PartNumber, else the chassis model).

napalm_redfish/transport.py

@@ -73,6 +73,20 @@ class RedfishAuthError(RedfishError):
     """Login failed, or the account may not read the resource (HTTP 401/403)."""
 
 
+class RedfishFeatureLicenseError(RedfishAuthError):
+    """One resource is refused until a vendor license is activated, the rest answers.
+
+    A Supermicro X10 with only the OOB license reads ``Systems`` and ``Managers`` but
+    refuses ``Systems/1/Storage`` and ``UpdateService`` for want of DCMS.
+    """
+
+    def __init__(self, message: str, *, licenses: str = "", status: int | None = None,
+                 path: str | None = None):
+        super().__init__(message, status=status, path=path)
+        #: The licenses the service names, e.g. "DCMS"; empty when it names none.
+        self.licenses = licenses
+
+
 class RedfishHTTPError(RedfishError):
     """The service answered with an HTTP error status."""
 
@@ -336,6 +350,10 @@ class RedfishTransport:
             return data
         detail = _error_message(data)
         message = f"{method} {path}: HTTP {status}" + (f": {detail}" if detail else "")
+        if status == 403 and any(i.endswith(LICENSE_REFUSED) for i in _message_ids(data)):
+            raise RedfishFeatureLicenseError(
+                message, licenses=" ".join(" ".join(_message_args(data)).split()),
+                status=status, path=path)
         if status in (401, 403):
             raise RedfishAuthError(message, status=status, path=path)
         if status == 404: