prompt - Support multiple scopes

[bendtherules]

Expected behaviour

#901 added support for multiple scopes, but prompt and prompt-cli still doesn't understand them. It should support multiple scopes - both as step-by-step autocomplete as well as directly writing a,b,c.

Current Behavior

In prompt-cli scope step, it doesn't allow values like a,b. Also no autocomplete.

Affected packages

• cli
• core
• prompt
• config-angular