REQUEST-3552: Added a choices separator to Prompt.ask. This argument …

[vivekkeshore]

Type of changes

• Bug fix
• New feature
• Documentation / docstrings
• Tests
• Other

Checklist

• I've run the latest black with default args on new code.
• I've updated CHANGELOG.md and CONTRIBUTORS.md where appropriate.
• I've added tests for new code.
• I accept that @willmcgugan may be pedantic in the code review.

Description

Issue - #3552

Added a choices separator to Prompt.ask. This argument will allow the choices to be separated by anything other than the default "/" in the console.

Example

from rich.prompt import Prompt

predicate = Prompt.ask(
	f"[green]Enter the animal name[/green]",
	choices=["Lion", "Tiger", "Bear", "Giraffe", "Elephant"],
	case_sensitive=False,
	show_choices=True,
        choices_separator=" | " 
)

Enter the animal name [Lion | Tiger | Bear | Giraffe | Elephant]: