Checkbox and radiobutton group

[bjarnef]

We looking a several other webcomponent libraries, I noticed many of these have CheckboxGroup and RadiobuttonGroup.

Examples:
https://circuit.sumup.com/?path=/docs/forms-checkboxgroup--docs
https://circuit.sumup.com/?path=/docs/forms-radiobuttongroup--docs

https://vaadin.com/docs/latest/components/radio-button
https://vaadin.com/docs/latest/components/checkbox

Some of the benefits:

• Set a label/description on each group
• Control name on group mainly relevant to form submission and radiobuttons in a group, which ensure only a single option is selected.
• Set orientation (horizontal or vertical)