Add VuiTooltip to more components

[cjcenizal]

We added VuiTooltip in https://github.com/vectara/vectara-ui-source/pull/141 and applied it by default to VuiIconButton. But we should also apply it to a few other components that rely on icons to communicate information:

• Clickable VuiBadges: When VuiBadge is clickable, it should require an aria-label that explains what clicking it will do. We should also wrap it in a VuiTooltip and pass along the aria-label as a tip.
• VuiCopyButton: VuiCopyButton needs to require a tip that will explain what it will copy. The dropdown button should have a hardcoded tip: "More copy options".
• VuiOptionsButton: This needs a hardcoded tooltip on the dropdown button: "More options".

This is primarily an accessibility enhancement for screen-readers.