Support for url slugs / roles used by Wilma

[PetriAsi]

Wilma provides slug prefixes for separate different roles under one user account

Expected Behavior

When user have multiple roles those should be available to select.

Current Behavior

Currently wilma user account with multiple roles does not work correcly.

Possible Solution

As roles are available only after login, we need to notify users to select role.
Then there's need for some kind of role selection command.

Connect-WPSWSession -> checks roles (Get-WPSWConnectionRole ?) and notifies users if needed.
Select-WPSWConnectionRole could be a command to switch between roles.
After role selection, all other commands should use selected role and it slug prefix.