All bugfixes and new checks for Redfish integration

[Yogibaer75]

Thank you for your interest in contributing to Checkmk!
Consider looking into Readme regarding process details.

General information

Extensions to the current Redfish checks (CMK 2.4.0p18)

• Inventory data
• PDU status
• Power consumption & redundancy
• modifications to special agents for the new checks
• HW/SW inventory same path for firmware and hardware components
• checks of storage controllers can be configured to be full or rollup only
• ignore some stupid device levels of 0 degrees on some HPE temp sensors
• same output for SSD utilization and SSD wear level --> Media Life Left

Extension was tested with 30 Redfish mockup servers and had no error message.

It would be good to have this also in 2.4 and 2.5 as the master is way different than the current versions.
Or should i make a PR with these to 2.4 & 2.5 also?

BR
Andreas