feat: Add pagination nav component

[mrsideshowjack]

Closes #635

adds the pagination nav component, modeled after the react implementation.

Changelog

A       packages/core/src/components/cv-pagination-nav/cv-pagination-nav-item.vue
A       packages/core/src/components/cv-pagination-nav/cv-pagination-nav-notes.md
A       packages/core/src/components/cv-pagination-nav/cv-pagination-nav-overflow.vue
A       packages/core/src/components/cv-pagination-nav/cv-pagination-nav.vue
A       packages/core/src/components/cv-pagination-nav/index.js
M       packages/core/src/index.js
A       storybook/stories/cv-pagination-nav-story.js

Note: Note the commented out code in cv-pagination-nav.vue, still working on the math on where/how to cut the list into overflow items. Any help is appreciated. Wanted to get the PR open for visibility (and before November 😂). In it's current state it will work without any overflow items.

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[lee-chase]

@mrsideshowjack is there anything you need from me to progress this into 'Ready for review'?

[dubcanada]

@mrsideshowjack @lee-chase I played around with this and it works fine to me.

It does seem to be missing the aria-current="page"

[lee-chase]

Sort of works @dubcanada @mrsideshowjack

It does not update when the props change.

It is also missing behaviour restricting the number of items shown.