feat: adding a useGrouping option for number formatting

[dlockhart]

Within our number input web component, we've decided that we'd like to suppress showing the thousand separators in the input itself. These can be confusing to see in an input, especially when you're trying to change a value by adding/removing digits -- in these cases you need to fix where the thousand separators are before it'll validate.

This is why it's not common to see thousand separators in number inputs -- <input type="number"> doesn't show them, and tools like Excel/Google Sheets only show them where a number is rendered, not where it's inputted.

This change adds an option to suppress thousand separators from formatNumber() -- it follows the same naming convention as the native Intl NumberFormat does.

[ghost]

🎉 This PR is included in version 3.5.0 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

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