Add wordmark component (#27)

* Added component for wordmark that can be adjusted for size, color, accessibility - brain dump from Mike and PHACDataHub/safe-inputs#109, still need a full test coverage and code clean up

* added wordmark component (Canada logo) from Mike's brain dump - still working on tests for colour

* Add wordmark component dan (#26)

* Change Wordmar attribute API

* Added tests for color,monochrome variants

* Add test section comment

* Fix broken test: wrong Wordmark variant invoked

* removed maxWidth as not a svg attribute (https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute), removed unused roles from flag and text color

* removed static canada.svg file

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Co-authored-by: Daniel Lauzon <daniel.lauzon@gmail.com>