Template file: Dashboard page

[mcarrano]

Add a template for a generic Dashboard page

[gdoyle1]

@abichen do you want to pick this up and add all of of the dashboard card work we did for PF in the template file in the page called "Dashboards"? You can pretty much delete what's currently there!

[abichen]

patternfly-template.sketch.zip
@gdoyle1 Added the dashboard cards and dashboard example!

[gdoyle1]

Thanks @abichen !! Just merged this 🎉