Hostfactory command for new CLI

[Conjur-oss]

The host-factory feature enables the user to create hosts and grant them permissions in a dynamic way.
Each host will be created using the token (which is common for all creations), each host still has a dedicated API key for fetching secrets.
For more information on Host-factory see [here |https://docs.cyberark.com/Product-Doc/OnlineHelp/AAM-DAP/Latest/en/Content/Operations/Services/host_factory.html?tocpath=Fundamentals%7CAuthentication%7C_____10]and [here|https://docs.cyberark.com/Product-Doc/OnlineHelp/AAM-DAP/Latest/en/Content/Operations/Policy/statement-ref-host-factory.htm?TocPath=Fundamentals%7CPolicy%20Management%7CPolicy%20Statement%20Reference%7C_____6].

 
h2. The customer need

As a Conjur user
I would like to use the Conjur cli
In order to automatically creates hosts and enrolls them into one or more layers.

 
h2. DOD

• Implement the UI command and subcommands in Conjur Python CLI in all 3 platforms
•  Demo the flow described above
•  Automatic integration tests written according to a test plan and passed successfully
•  Fill in the user messages - link to a page with all user messages for CLI saved and reviewed.
•  Fill in the logs and place here a link to the logs files - link to a page with all logs for CLI saved and reviewed.
•  Logs were reviewed by TW and PO
•  Are there new Audits to this feature? If so please document them and provide here a link (N/A)