feat: a bmc driver that takes the best of Redfish and IPMI (0.4.0)

bmc (napalm_redfish.bmc:BmcDriver) reads a BMC over Redfish where it
answers. A BMC that refuses Redfish (no license) is read and switched over
IPMI. A getter that fails over Redfish is asked over IPMI where IPMI has it;
IPMI is opened only then. Power control goes over Redfish when it answers,
and a refusal is final. The BMC is reset over Redfish only. Same account
for both; ipmi_port in optional_args.

Discovery suggests bmc for a BMC it finds: the fingerprint rules moved from
RedfishDriver to BmcDriver.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "napalm-redfish"
-version = "0.3.1"
+version = "0.4.0"
 description = "NAPALM driver for server baseboard management controllers over DMTF Redfish"
 readme = "README.md"
 license = { file = "LICENSE" }
@@ -32,6 +32,7 @@ test = [
 [project.entry-points."napalm.drivers"]
 redfish = "napalm_redfish:RedfishDriver"
 ipmi = "napalm_redfish.ipmi:IpmiDriver"
+bmc = "napalm_redfish.bmc:BmcDriver"
 
 [tool.setuptools.packages.find]
 include = ["napalm_redfish*"]