Command line entry point allowing a few things such as:

• Initial setup ansible role to deploy FreshRSS automatically #1090
• Create new user ansible role to deploy FreshRSS automatically #1090
• Import OPML ansible role to deploy FreshRSS automatically #1090
• Export OPML Export to OPML from the CLI #1039 Automate export of feeds #1277
• Actualize a user
• Do not insert default feeds during user create (do that by OPML import instead)