Add additional styling

[CrazyIvan359]

This PR adds a several new methods of styling the select and checkbox prompts

• Add flag to disable drawing of the pointer character
• Add highlighted token to style the choice being pointed to
  • This style will only be applied when use_pointer is False
• Add text token to style ordinary text
• Add disabled token to style disabled choices
• Disabled value is no longer displayed if it is a bool
• Choice titles can now be a list of token tuples to support custom styling
  • The answer displayed after the prompt is closed will use the answer token
  • This type of styling means that selected and highlighted tokens will have no effect

I originally thought that use_indicator would serve the same purpose as use_pointer in this PR, but for select it turns on the checkbox style checkbox symbol. I suggest removing this option from the select prompt as well, but I wanted to discuss before making that change.

questionary/questionary/prompts/select.py

Lines 53 to 55 in da7a2f9

	use_indicator: Flag to enable the small indicator in front of the
	list highlighting the current location of the selection
	cursor.

This PR supersedes #12 and #13

[tmbo]

@CrazyIvan359 sorry I missed this, was on vacation and there were to many github notifications.

Great PR! Before I can merge it we need some docs on the additional options. Can you please adapt the readme (e.g. adding the additional styling keys to the list)?

[CrazyIvan359]

No problem, hope it was a good one.

I will get some docs added as soon as I can.

What are your thoughts on removing use_indicator for the select dialog?

[tmbo]

Mhm I don't think we should remove it as it serves a different purpose than the flag you are proposing. The naming might not be ideal, but I think we should keep both

[CrazyIvan359]

Alright, I'll leave it in. I should have some time this weekend to write up some docs.

[tmbo]

sounds awesome 🚀

[CrazyIvan359]

Docs added!
Caught an oversight because I wasn't using it. Choice now concats all text from title tokens to use as value instead of the list itself.
Also added a couple of tests.

[tmbo]

Thanks a lot for the additional tests and the documentation - looks great 🚀

[tmbo]

feature is released as part of version 1.3.0