Add Tile Component

[TechSolomon]

Some notes:

• I had some issues running the COMMIT-DOCS-DIST command since this was my first component-based contribution to the Svelte-UIKit3 project. Please review commit 759aeb3, in addition to the other changes, because it may be missing some critical documentation for our Storybook live publication.
• I followed the examples in the UIkit Tile documentation, but have not yet included references to tile padding.
• Also, feel free to check and adjust the naming convention of the Style knob to make it consistent with the other component. I will also need more clarification with the blank/default list item for future reference. Thanks!

To-do (8th item from issue #1):

• Add the width action
  • Again see other components for an example (use:uk_width)
  • See also Svelte documentation

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This pull request resolves #1.

[ItsMeBrianD]

Looks correct, well done!