Resolve CE-1802 "Create user page"

User Profile Page created which can be accessed from the User menu:

The page contains information about the user (login name + avatar), which IOC's created, and what operations has done:

You can check other user's profile/activity by changing the URL: user/{USER_LOGIN_NAME}

You have to be logged in to check the user profile page, or you will see:

If unknown username was entered:

Solution candidate is deployed to the TEST environment.

We can re-visit the page arrangement later in a separate ticket, this first version is about to check all necessary information is being provided correctly on the page!