fixes #17300 - accept Nic::Bond#attached_devices string inputs

(cherry picked from commit 18780e5cb7f7d0fbcf97b99426217730b1a54635)

fixes #16578 - make keep_param idempotent, remove duplicate call

Using host_params (and keep_param) twice was causing compute_attributes
to be deleted permanently out of `params`. keep_param now restores
elements it deletes, and the controller now only calls host_params once...

fixes #15951 - pass interface compute_attributes

fixes #3917 - replace protected_attrs with strong parameters

Filtering of attributes has moved from the protected_attributes gem to
strong parameters in controller concerns, to be in line with current
Rails recommendations.

Concerns are shared between UI and both API controllers and list the...