Add parsers for the Redfish resources in redfish-map.md

Pure functions for ServiceRoot, ComputerSystem (facts, power state, reset action and ActionInfo), Processors, Memory, Storage/Drives/SimpleStorage, Chassis Thermal and Power as well as ThermalSubsystem/PowerSubsystem/Sensors (with environment_sources to pick whichever exists), Manager, EthernetInterfaces, ManagerNetworkProtocol, accounts, firmware inventory and log services/entries.

napalm_redfish/parsers/firmware.py

@@ -0,0 +1,23 @@
+"""UpdateService firmware inventory (``UpdateService/FirmwareInventory/*``)."""
+
+from __future__ import annotations
+
+from typing import Any, Mapping
+
+from .common import boolean, link_list, status, text
+
+
+def parse_firmware(item: Mapping[str, Any]) -> dict[str, Any]:
+    """One SoftwareInventory member: what it is, its version, whether it can be updated."""
+    state, health = status(item)
+    return {
+        "id": text(item.get("Id")),
+        "name": text(item.get("Name")),
+        "version": text(item.get("Version")),
+        "updateable": boolean(item.get("Updateable")),
+        "manufacturer": text(item.get("Manufacturer")),
+        "release_date": text(item.get("ReleaseDate")),
+        "state": state,
+        "health": health,
+        "related": link_list(item, "RelatedItem"),
+    }