Add arti hss {destroy, destroy-and-recreate} subcommands

arti-hss-destroy

NAME
       arti-hss-destroy - remove the persistent state and all the keys of a hidden service

SYNOPSIS
       arti hss destroy [OPTIONS]

DESCRIPTION
       Remove the persistent state and all the keys of a hidden service.

       This removes
         * the IPT state of the service stored on disk
         * any the keys associated with the service, from all key stores

OPTIONS
       --nickname
            The nickname of the service to erase

EXAMPLES
       Erase all the keys and state hidden service with nickname "shallot":

         arti hss --config arti.toml destroy \
             --nickname shallot

Implementation

Required KeyMgr APIs:

• KeyMgr::remove

arti-hss-destroy-and-recreate

NAME
       arti-hss-destroy-and-recreate - Generate a new identity keypair for a hidden service

SYNOPSIS
       arti hss destroy-and-recreate [OPTIONS]

DESCRIPTION
       A command for generating a new set of keys for an existing hidden
       service.

       This command deletes all the keys, including identity key, of the
       specified service and generates a fresh identity keypair.

       This command preserves the nickname of the service and its configuration
       (including the authorized clients).

       TODO: Expand on the description, add an example

OPTIONS
       --nickname
            The nickname of the service to destroy and recreate

Implementation

Required KeyMgr APIs:

• KeyMgr::remove
• KeyMgr::generate