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).

tests/fixtures/supermicro-x10drl-i-3.91/redfish/Managers/1/SNMP/SNMPv2/index.json

@@ -0,0 +1,10 @@
+{
+ "@odata.context": "/redfish/v1/$metadata#SNMPv2.SNMPv2",
+ "@odata.id": "/redfish/v1/Managers/1/SNMP/SNMPv2",
+ "@odata.type": "#SNMPv2.v1_0_0.SNMPv2",
+ "Id": "1",
+ "Name": "SNMPv2",
+ "ROCommunity": "community-ro",
+ "RWCommunity": "community-rw",
+ "Snmpv2Enabled": true
+}

tests/fixtures/supermicro-x10drl-i-3.91/redfish/Managers/1/SNMP/SNMPv3/index.json

@@ -0,0 +1,21 @@
+{
+ "@odata.context": "/redfish/v1/$metadata#SNMPv3.SNMPv3",
+ "@odata.id": "/redfish/v1/Managers/1/SNMP/SNMPv3",
+ "@odata.type": "#SNMPv3.v1_0_0.SNMPv3",
+ "AuthKey": "",
+ "AuthProtocol": "MD5",
+ "AuthProtocol@Redfish.AllowableValues": [
+  "SHA1",
+  "MD5"
+ ],
+ "Id": "1",
+ "Name": "SNMPv3",
+ "PrivateKey": "",
+ "PrivateProtocol": "DES",
+ "PrivateProtocol@Redfish.AllowableValues": [
+  "AES",
+  "DES"
+ ],
+ "Snmpv3Enabled": false,
+ "UserName": ""
+}

tests/fixtures/supermicro-x10drl-i-3.91/redfish/Managers/1/SNMP/index.json

@@ -0,0 +1,14 @@
+{
+ "@odata.context": "/redfish/v1/$metadata#SNMP.SNMP",
+ "@odata.id": "/redfish/v1/Managers/1/SNMP",
+ "@odata.type": "#SNMP.v1_0_0.SNMP",
+ "Id": "1",
+ "Name": "SNMP",
+ "SNMPv2": {
+  "@odata.id": "/redfish/v1/Managers/1/SNMP/SNMPv2"
+ },
+ "SNMPv3": {
+  "@odata.id": "/redfish/v1/Managers/1/SNMP/SNMPv3"
+ },
+ "SnmpEnabled": true
+}