Add idrac-redfish url type

[juliakreger]

The idrac BMCs have partiular handling of boot mode as configuration
change requests which need to be honored only at power state changes
as opposed to immediately, because this can conflict and over-write
existing configuration jobs.

While we shouldn't be in this state without more advanced bmc
features being leveraged, it is best to use the vendor supported
hardware type and interfaces for using redfish with their hardware.

This boot interface defaults to using iPXE, as opposed to virtual
media. A separate idrac specific redfish virtual media interface
already existed in the baremetal-operator.

[metal3-io-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues will close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[zaneb]

/remove-lifecycle stale
/approve

[metal3-io-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: juliakreger, zaneb

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [zaneb]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[metal3-io-bot]

@juliakreger: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
gofmt	7954192	link	/test gofmt

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[dhellmann]

@juliakreger it looks like this needs to be run through go fmt. Do you want to do that and update the PR?

[dhellmann]

This will need to be rebased.

[dhellmann]

I think #633 replaces this.