Table: Add new example and adjust existing example

[Spark450]

Acceptance Criteria:

• Add a "striped" row treatment to table in "sortable columns example"
  • stripes should be on "odd" table rows
  • Stripe background color is #F8F8F8
• Use "number" styling for "Number" column in main sandbox example
  • Numbers will be right aligned and use number font
• "Action" buttons in table should be "compact" type