Move slices to common, add initial layout information
Add template explaining how layout would work
Add initial spec for slice with cards
Add flex width to MPU
Add more information to template
Change nomenclature
Add more specs for slice with cards
Wired up Slices, cards and stuff for first container
Wire up new layout config to slow-4 template
Fix merge conflicts
End-to-end functionality of the new layout data-structure
Merge branch 'add-layout-information-to-slices' into facia-cards-2.0