SSH key pairs deployed via the user's ssh_keys_pillar dict aren't
handled the same as the user's ssh_keys, e.g., file ownership and
permissions aren't specified, and the keying material gets copied
directly into the SLS file. This change rewrites the two templated
file.managed states to behave as follows:
- set the files' owner to be the user
- set the files' group to be the user's primary group
- for the public key, set the mode to 644 (u=rw,go=r)
- for the private key, set the mode to 600 (u=rw,g=)
- pull the files' contents directly from pillar
2f4c088e5d