Add more flexibility to data shape for components like TECheckBoxGroup and TERadioButtonGroup.

Currently for many components there is a strict shape of data used to create options. For example `TECheckboxGroup` wants an array looking like:
```
{
  label: string;
  value: string;
  key: string;
}
```

It would be nice to add props like `pathForLabel` and `pathForValue` so that data doesn't need to be manipulated to fit into the `buttonArray` prop.