[Playground] Add selectable options for complex props (function, container etc)

[MarkoOleksiyenko]

Some components have complex props as input and the validator doesn't accept the string as a valid entry. As an example the ariaValueLabel is a function but if you type: "(value) => "" + value", validator will say that it is an invalid value. Some components have already the select set up (propsValues.ts), so the following ones need to be augmented with the same behavior:

• [ ] Modal
• [ ] Pagination
• [ ] Progressbar
• [ ] Select
• [ ] Slider