SecOCKey Restore button

[calvinpark]

Description

Owners of Toyota Security Key (TSK) vehicles need to extract the security key and then and write it to SecOCKey param. The biggest hurdle for this is the SSH requirement, as many people have not used SSH or GitHub before.

Extracting the security key is now possible to do without SSH through a community-developed GUI application TSK Manager. By pushing a GUI button, users are able to extract the security key and then write to 1. /data/params/d/SecOCKey to install the param and also to 2. /cache/params/SecOCKey to archive it.

While this works well for the initial extraction and putting the param before the initial openpilot installation, reinstalling openpilot remains to be cumbersome. Uninstalling openpilot deletes the param, so the users must SSH in and write the key again on each uninstall/reinstall.

This PR adds a settings button to restore the key that's archived in /cache/params/SecOCKey file onto SecOCKey param. This allows the users who already extracted and archived the key using TSK Manager to restore the key upon a reinstall without using SSH.

A shortcoming of this button is that /cache/params/SecOCKey archive file must already contain the key. The existing users who had used SSH in the past to extract the key (as opposed to using TSK Manager) don't have this file, but such people already have SSH configured so it's not difficult to guide them to create the archive file.

Verification
I've tested on my device for all code paths.

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[github-actions]

UI Preview

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All Screenshots

[calvinpark]

1. Is Device the right place for this? I think it is. It's a button not a Toggle. Also TSK is not about openpilot Software. Finally, a TSK vehicle owner is not always a Developer.
2. Happy to move it down, but I think it belongs above Reset anything.
3. I'm open to changing wording, display formatting, code paths, code styles, and anything else as comma.ai prescribes.

[adeebshihadeh]

This should not be 100+ new lines... we'd consider a few line change that copies from /cache to the param.